Interrupt List - Release 61 (16jul00)
⇤
⇠
⇧
🏠
∕
HTML Edition
∕
Browse the Index
∕
INT 21 U
⇢
⇥
RBIL61 - INT 21 U
INT 21 - AI Architects - OS/x86??? -
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47920}
INT 21 - Brian Antoine Seagate ST-01
SCSI
(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE.
.SYS - IOCTL - EXECUTE COMMANDS
{#idx48435}
INT 21 - Concurrent DOS etc. - USER GROUP SUPPORT
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50165}
INT 21 - Creative Technology CTMMSYS.SYS v1.00.01 -
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47207}
{#idx47225}
INT 21 - CUBIT v4.00 - GET CUBIT INT 21 HANDLER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55780}
INT 21 - CUBIT v4.00 - UNINSTALL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55792}
INT 21 - DBLSPACE.BIN - IOCTL - FLUSH OR INVALIDATE INTERNAL CACHES
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48410}
INT 21 - DJ GO32.EXE 80386+ DOS extender - DOS EXTENSIONS
{#idx71384}
INT 21 - DOS 2+ - IOCTL - READ FROM CHARACTER DEVICE CONTROL CHANNEL
{#idx46209}
INT 21 - DOS 2+ - IOCTL - WRITE TO CHARACTER DEVICE CONTROL CHANNEL
{#idx47880}
INT 21 - DOS 2+ internal -
"SYSVARS"
- GET LIST OF LISTS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx51072}
INT 21 - DOS 3.0+ internal - GET ADDRESS OF DOS SWAPPABLE DATA AREA
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53054}
INT 21 - DOS 3.1+ internal - COMMIT ALL FILES FOR SPECIFIED COMPUTER/PROCESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52950}
INT 21 - DOS 3.1+ internal - SERVER FUNCTION CALL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52908}
INT 21 - DOS 3.1+ internal - SHARE.EXE - CLOSE ALL FILES FOR GIVEN COMPUTER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52991}
INT 21 - DOS 3.1+ internal - SHARE.EXE - CLOSE ALL FILES FOR GIVEN PROCESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53012}
INT 21 - DOS 3.1+ internal - SHARE.EXE - CLOSE FILE BY NAME
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52970}
INT 21 - DOS 3.1+ internal - SHARE.EXE - GET OPEN FILE LIST ENTRY
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53031}
INT 21 - DOS 3.1+ network - FLUSH REDIRECTED PRINTER OUTPUT
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53250}
INT 21 - DOS 3.1+ network - GET REDIRECTED PRINTER MODE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53226}
INT 21 - DOS 3.1+ network - SET REDIRECTED PRINTER MODE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53236}
INT 21 - DOS 3.3+ - GET EXTENDED COUNTRY INFORMATION
{#idx55510}
INT 21 - DOS 4.0 internal -
IFS
see Installable File System
IOCTL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55813}
{#idx55835}
INT 21 - DOS 4.0+ - COMMIT FILE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55801}
INT 21 - DOS 4.0+ - DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55499}
INT 21 - DOS 4.0+ internal - GET/SET DISK SERIAL NUMBER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55707}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- FIND FIRST
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
PROGRAM
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55900}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- FIND NEXT
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
PROGRAM
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55926}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- GET EXCLUSION REGION LIST
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55980}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- GET
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
SCAN START ADDRESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55954}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- SET EXCLUSION REGION LIST
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55988}
INT 21 - DOS 5+
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
- SET
ROM
(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs.
SCAN START ADDRESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55974}
INT 21 - DR DOS 3.41+ - SET GLOBAL PASSWORD
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49993}
INT 21 - DR DOS 5.0+ - HISTORY BUFFER CONTROL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50005}
INT 21 - DR DOS 5.0+ internal - GET POINTER TO INTERNAL VARIABLE TABLE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50055}
INT 21 - DR DOS 5.0-6.0 - SHARE/HILOAD CONTROL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50024}
INT 21 - DR DOS 5.0-6.0 internal - GET ENCRYPTED PASSWORD
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx45822}
INT 21 - DR DOS 5.0-6.0 internal - SET EXTENDED FILE ATTRIBUTES
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx45838}
INT 21 - European MS-DOS 4.0 -
"PBLOCK"
- BLOCK A PROCESS
{partially documented}
{#idx57245}
INT 21 - European MS-DOS 4.0 -
"PRUN"
- UNBLOCK A PROCESS
{partially documented}
{#idx57257}
INT 21 - European MS-DOS 4.0 - ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx56900}
{#idx56952}
{#idx57010}
{#idx57075}
{#idx57080}
{#idx57130}
{#idx57166}
{#idx57204}
{#idx57221}
{#idx57226}
{#idx57240}
INT 21 - FBOOT v2.13 - PERFORM FAST BOOTSTRAP
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50645}
INT 21 - Headroom -
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52363}
INT 21 -
IBM
International Busiuness Machines
International Busiuness Machines) A hardware, software and other service technology company founded in 1911.
Genie - Resident Manager - INSTALLATION CHECK
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx52354}
INT 21 -
IBM
International Busiuness Machines
International Busiuness Machines) A hardware, software and other service technology company founded in 1911.
PC-DOS - KEYBGK - SELECT KEYBOARD LAYOUT
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx71133}
INT 21 -
IBM
International Busiuness Machines
International Busiuness Machines) A hardware, software and other service technology company founded in 1911.
SYSTEM 36/38 WORKSTATION EMULATION - VDI.SYS - GET ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx46225}
INT 21 - IFSHLP.SYS - GET ENTRY POINT
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx45429}
{#idx47446}
INT 21 - LAN Manager Enhanced DOS - DosDeleteMailslot
{partially documented}
{#idx54462}
INT 21 - LAN Manager Enhanced DOS - DosMailslotInfo
{partially documented}
{#idx54473}
INT 21 - LAN Manager Enhanced DOS - DosMakeMailslot
{partially documented}
{#idx54449}
INT 21 - LAN Manager Enhanced DOS - DosPeekMailslot
{partially documented}
{#idx54490}
INT 21 - LAN Manager Enhanced DOS - DosReadMailslot
{partially documented}
{#idx54481}
INT 21 - LAN Manager Enhanced DOS - DosWriteMailslot
{partially documented}
{#idx54499}
INT 21 - LAN Manager Enhanced DOS - GET REDIRECTOR VERSION
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54026}
INT 21 - LAN Manager Enhanced DOS - KILL ALL CONNECTIONS???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54523}
INT 21 - LAN Manager Enhanced DOS - LOCAL DosPrintJobGetId
{partially documented}
{#idx54260}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetMessageBufferSend
{partially documented}
{#idx54195}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetRemoteCopy
{partially documented}
{#idx54386}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetRemoteMove
{partially documented}
{#idx54403}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetServerEnum
{partially documented}
{#idx54417}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetServiceControl
{partially documented}
{#idx54248}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetServiceEnum
{partially documented}
{#idx54203}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetSpecialSMB
{partially documented}
{#idx54184}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetUseAdd
{partially documented}
{#idx54359}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetUseDel
{partially documented}
{#idx54367}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetUseEnum
{partially documented}
{#idx54337}
INT 21 - LAN Manager Enhanced DOS - LOCAL NetWkstaSetInfo
{partially documented}
{#idx54329}
INT 21 - LAN Manager Enhanced DOS - NetHandleGetInfo
{partially documented}
{#idx54168}
INT 21 - LAN Manager Enhanced DOS - NetHandleSetInfo
{partially documented}
{#idx54152}
INT 21 - LAN Manager Enhanced DOS - NetServerEnum2
{partially documented}
{#idx54508}
INT 21 - LAN Manager Enhanced DOS - NetUseGetInfo
{partially documented}
{#idx54375}
INT 21 - LAN Manager Enhanced DOS - REMOTE
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
CALL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54190}
INT 21 - LAN Manager Enhanced DOS - WRITE MAILSLOT???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54178}
INT 21 - LASTBYTE.SYS v1.19 - IOCTL - GET ??? TABLE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx46239}
{#idx46646}
{#idx47242}
{#idx47421}
INT 21 - Memory Managers - GET
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
ENTRY POINT
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47270}
INT 21 - Memory Managers - GET EMM IMPORT STRUCTURE ADDRESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47321}
INT 21 - Memory Managers - GET MEMORY MANAGER VERSION
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47400}
INT 21 - Named Pipes - DosCallNmPipe
{partially documented}
{#idx54100}
INT 21 - Named Pipes - LOCAL DosPeekNmPipe
{partially documented}
{#idx54071}
INT 21 - Named Pipes - LOCAL DosQNmPHandState
{partially documented}
{#idx54045}
INT 21 - Named Pipes - LOCAL DosQNmPipeInfo
{partially documented}
{#idx54031}
INT 21 - Named Pipes - LOCAL DosRawReadNmPipe
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54126}
INT 21 - Named Pipes - LOCAL DosRawWriteNmPipe
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx54139}
INT 21 - Named Pipes - LOCAL DosSetNmPHandState
{partially documented}
{#idx54061}
INT 21 - Named Pipes - LOCAL DosTransactNmPipe
{partially documented}
{#idx54088}
INT 21 - Named Pipes - LOCAL DosWaitNmPipe - AWAIT AVAIL. OF PIPE INSTANCE
{partially documented}
{#idx54114}
INT 21 - Network - GET FULL REDIRECTION LIST
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx53934}
INT 21 - Network Driver Interface Specification
(
NDIS
(Network Driver Interface Specification) A hardware-independent network interface developed by Microsoft and 3com. See also Packet Driver, TCP/IP.
)
2.0.1 - PROTOCOL MANAGER
{#idx47135}
INT 21 - NewSpace - ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50188}
INT 21 - NewSpace - DEBUGGING DUMP
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49575}
INT 21 - NewSpace - DISABLE DRIVER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49526}
INT 21 - NewSpace - ENABLE DRIVER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49504}
INT 21 - NewSpace - GET ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49553}
INT 21 - NewSpace - INSTALLATION CHECK???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx49548}
INT 21 - Novell DOS 7 - SDRes v27.03 - CLEAR ??? FLAG
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx41772}
INT 21 - Novell DOS 7 - SDRes v27.03 - INSTALLATION CHECK
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx41757}
INT 21 - Novell DOS 7 - SDRes v27.03 - SET ??? FLAG
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx41778}
INT 21 - Novell NetWare -
"AttachHandle"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57469}
INT 21 - Novell NetWare -
"HoldFileModeSet"
(obsolete)
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57561}
INT 21 - Novell NetWare -
"ReturnCommandComPointers"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57693}
INT 21 - Novell NetWare -
"SpecialAttachableFunction"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57680}
INT 21 - Novell NetWare - CHECK LIP/PACKET SIGNING/
IPX
(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software.
CHECKSUM SUPPORT???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57413}
INT 21 - Novell NetWare - CHECK SIGNATURE LEVEL???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57423}
INT 21 - Novell NetWare - DIRECTORY SERVICES - ALLOC SPECIAL TEMP DIR HANDLE
{partially documented}
{#idx59690}
INT 21 - Novell NetWare - SET SIGNATURE LEVEL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57449}
INT 21 - Novell NetWare - START PACKET SIGNING
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57435}
INT 21 - Novell NetWare - VERIFY NETWORK SERIAL NUMBER
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx59919}
INT 21 - Novell NetWare - VNETWARE.386
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
- END VIRTUAL MACHINE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57491}
INT 21 - Novell NetWare - VNETWARE.386
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
- GET INSTANCE DATA
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57485}
INT 21 - Novell NetWare - VNETWARE.386
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
- GET VIRTUAL MACH SUPPORT LEVEL
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57522}
INT 21 - Novell NetWare - VNETWARE.386
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
- SET VIRTUAL MACHINE ID
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57516}
INT 21 - Novell NetWare - VNETWARE.386
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
- START VIRTUAL MACHINE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57497}
INT 21 - Novell NetWare v3.01+ shell interface - MULTIPLEXOR
{partially documented}
{#idx63304}
INT 21 - OS/2 v1.x FAPI -
"DosEnumAttrib"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55934}
INT 21 - OS/2 v1.x FAPI -
"DosMkDir2"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55912}
{#idx55921}
INT 21 - OS/2 v1.x FAPI -
"DosQMaxEASize"
- GET MAXIMUM SIZE OF EXTENDED ATTR
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55959}
INT 21 - OS/2 v1.x FAPI - OS/2 FILE SYSTEM JOIN/SUBST
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55201}
INT 21 - OS/2 v2.0 -
"DosOpen2"
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55881}
INT 21 - OS/2 v2.0+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- ENABLE AUTOMATIC TITLE SWITCH
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55333}
INT 21 - OS/2 v2.0+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET SESSION TITLE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55353}
INT 21 - OS/2 v2.0+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- SET SESSION TITLE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55342}
INT 21 - OS/2 v2.1
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET LASTDRIVE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55363}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET LOADING MESSAGE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55398}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET SECOND
SFT
see System File Table
FLAGS WORD
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55378}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET SIZE OF PTDA
JFT
see Job File Table
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55372}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- GET WinOS2 CALL GATE ADDRESS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55392}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- OS/2
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
DOS32StartSession
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55410}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- OS/2
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
DosForceDelete
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55430}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- OS/2
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
DosQFSAttach
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55421}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- OS/2
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
support
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55407}
INT 21 - OS/2 v2.1+
Virtual DOS Machine
A special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h.
- UNLOAD DOSKRNL SYMBOLS & LOAD PROGR
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx55385}
INT 21 -
PC
IBM PC
Tools 9 CPRLOW.EXE - GET CODE AND DATA ADDRESSES
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47165}
INT 21 -
PC
IBM PC
Tools v7+ VDEFEND, VSAFE, VWATCH -
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx71119}
INT 21 - PenDOS PENDEV.SYS - ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48100}
INT 21 - PenDOS PENDEV.SYS - GET ENTRY POINTS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx47109}
INT 21 - PTS-DOS 6.51 & S/DOS 1.0 - ABORT CURRENT PROCESS VIA INT 23
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57172}
INT 21 - PTS-DOS 6.51 & S/DOS 1.0 - DIRECT DISK READ
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57085}
INT 21 - PTS-DOS 6.51 & S/DOS 1.0 - DIRECT DISK WRITE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx57135}
INT 21 - Qualitas 386MAX v6.01+ - SET STATE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48070}
INT 21 - Qualitas 386MAX v6.01+ - TURN 386MAX OFF
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48049}
INT 21 - Qualitas 386MAX v6.01+ - TURN 386MAX ON
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48060}
INT 21 - Qualitas 386MAX v7.00+ - ALLOW AUTOMATIC ACTIVATION ON ANY INT 67
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48091}
INT 21 - Qualitas 386MAX v7.00+ - LIMIT AUTOMATIC ACTIVATION TO STD
EMS
see Expanded Memory Specification
CALLS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48082}
INT 21 - Quarterdeck - HOOKROM.SYS - GET HOOKED VECTOR TABLE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx46459}
INT 21 - Rational Systems DOS/4GW - ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71415}
{#idx71421}
{#idx71427}
{#idx71433}
{#idx71445}
{#idx71451}
{#idx71466}
{#idx71472}
{#idx71481}
{#idx71487}
{#idx71507}
{#idx71513}
{#idx71533}
INT 21 - Rational Systems DOS/4GW - EXCHANGE ??? POINTERS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71501}
INT 21 - Rational Systems DOS/4GW - GET ??? FUNCTIONS
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71520}
INT 21 - Rational Systems DOS/4GW - GET ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71439}
{#idx71527}
INT 21 - Rational Systems DOS/4GW - GET VERSION???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71396}
INT 21 - Rational Systems DOS/4GW - GET/SET ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71458}
INT 21 - Rational Systems DOS/4GW - NOP
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71495}
INT 21 - Rational Systems DOS/4GW - SET ???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
, protected mode}
{#idx71408}
INT 21 - SCROLLit v1.7 - INSTALLATION CHECK
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx56677}
INT 21 - Software Carousel - INSTALLATION CHECK
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx58733}
INT 21 - Stacker - GET DEVICE DRIVER ADDRESS AND SET VOLUME NUMBER
{#idx48270}
INT 21 - Sun PC-NFS -
API
(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
???
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx50181}
INT 21 - SUPERSTOR - IOCTL - INSTALL CHECK
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48560}
INT 21 - Trusted Access - NB.SYS - SET STATE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx45593}
INT 21 - Windows95 - internal - LONG FILENAME - FIND NEXT MATCHING FILE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx56360}
INT 21 - Windows95 - internal
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx56376}
{#idx56381}
{#idx56386}
INT 21 - xDISK v3.31 - CONFIGURE
{
undocumented
Information about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.
}
{#idx48285}