INT 2F - MS Windows - GET DEVICE 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
	AX = 1684h
	BX = virtual device (VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.) ID (see #02642)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. 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, or 0:0 if the VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. does not support an 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.
Note:	some Windows enhanced-mode virtual devices provide services that
	  applications can access.  For example, the Virtual Display Device
	  (VDD) provides an 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. used in turn by WINOLDAP.
SeeAlso: AX=1684h/BX=0001h,AX=1684h/BX=0015h,AX=1683h,AX=4011h,INT 20"Windows"


(Table 02642)
Values for MS Windows VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. ID:
Value	Name   CallOut V86see Virtual-86 Mode PM	Description
 0000h	ACT200L	     ?	?  ?	IrDA Infrared ActiSys framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	ACT220L	     ?	?  ?	IrDA Infrared ActiSys 220 framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	ADAPTEC	     ?	?  ?	IrDA Infrared Adaptec framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	AM1500T	     ?	N  N	(Win95)
 0000h	ATI	     ?	N  N	(Win95) ATI display driver
 0000h	ATIPPCAP     ?	N  Y	ATI Rage128-based video card
 0000h	CDFS	     ?	N  N
 0000h	CDTSD	     ?	N  N	(Win95) CD-ROM Type-Specific Driver
 0000h	CE2NDIS3     ?	N  N	(W4Wg)
 0000h	CENDIS	     ?	N  N	(W4Wg)
 0000h	CHIPS	     ?	N  N	(Win95) Chips&Tech display driver
 0000h	CIRRUS	     ?	N  N	(Win95) Cirrus display driver
 0000h	CTNDW	     ?	N  N	(W4Wg)
 0000h	CTVSD	     ?	N  N	(Win95) CD-ROM Vendor-Specific Driver
 0000h	CM2NDIS3     ?	N  N	(W4Wg)
 0000h	COMBUFF	     ?	N  N	(Win95)
 0000h	COMPAQ	     ?	N  N	(Win95) Compaq display driver
 0000h	CPQNDIS3     ?	N  N	(W4Wg)
 0000h	CRYSTAL	     ?	?  ?	IrDA Infrared Crystal framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	CWCENUM	     ?	N  N	(Win95SR2???)
 0000h	CWCSPUD3     ?	N  N	(Win95SR2???)
 0000h	DBKVSSD	     ?	N  N	(Win95) Databook PCMCIA socket services???
 0000h	DDOM95	     ?	N  N
 0000h	DECLAN	     ?	N  N	(W4Wg)
 0000h	DiskTSD	     ?	N  N	(Win95) hard-disk Type-Specific Driver
 0000h	DiskVSD	     ?	N  N	(Win95) hard-disk Vendor-Specific Driver
 0000h	DMICTVXD     ?	N  N
 0000h	DMMDVDX	     ?	N  N	Diamond MaximumDVD
 0000h	DRVSPACX     ?	N  N	(Win95)
 0000h	E30N3	     ?	N  N	(W4Wg)
 0000h	E31N3		N  N	(W4Wg)
 0000h	EE16		N  N	(W4Wg)
 0000h	EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus).		N  N	(Win95)
 0000h	EL59X		N  N	(Win95)
 0000h	ELNK16		N  N	(W4Wg)
 0000h	ELNK3		N  N	(Win95)
 0000h	ELNKII		N  N	(W4Wg)
 0000h	ELNKMC		N  N	(W4Wg)
 0000h	ELPC3		N  N	(W4Wg)
 0000h	ENABLE2		N  N	(Win95)
 0000h	ENABLE4		N  N	(Win95)
 0000h	EPRO		N  N	(Win95)
 0000h	ES1488V		N  N	(Win95)
 0000h	ES1688V		N  N	(Win95)
 0000h	ES488V		N  N	(Win95)
 0000h	ES688V		N  N	(Win95)
 0000h	ESI		?  ?	IrDA Infrared ESI framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	FILEMON		N  N	DOS386 File Monitor
 0000h	FLS1MTD		N  N	(Win95) flash-memory driver???
 0000h	FLS2MTD		N  N	(Win95) flash-memory driver???
 0000h	HPEISA		N  N	(W4Wg)
 0000h	HPFEND		N  N	(W4Wg)
 0000h	HPISA		N  N	(W4Wg)
 0000h	HPMCA		N  N	(W4Wg)
 0000h	HSFLOP		N  N
 0000h	IBMTOK		N  N	(W4Wg)
 0000h	IBMTOK4		N  N	(Win95)
 0000h	IRCOMM		?  ?	IrDA Infrared Virtual COM/LPTAbbreviation for Line PrinTer. driver
 0000h	IRLAMPEX	?  ?	IrDA Infrared Protocol VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	IRLAPFRM	?  ?	IrDA Infrared Virtual COM/LPTAbbreviation for Line PrinTer. frame driver
 0000h	IRMATRAK	N  N	(W4Wg)
 0000h	JAVASUP		N  N	Internet Explorer JAVA support
 0000h	KEYREMAP	N  N	(Windows95 PowerToys) shift-key remapper
 0000h	LPTAbbreviation for Line PrinTer.	     N	N  N	(Win4Workgroups 3.11) DOS386 LPTAbbreviation for Line PrinTer. Device
 0000h	LPTENUM	     ?	N  N
 0000h	MONVSD	     ?	?  ?
 0000h	MGA	     ?	N  N	(Win95) Matrox MGA display driver
 0000h	MSMINI	     ?	N  N	(Win95)
 0000h	MSODISUP     N	N  N	(Win4Workgroups 3.11) MS ODI(Open Data-link Interface) A hardware-independent network interface developed by Novell, Inc.  See also NDIS, Packet Driver. Support
 0000h	mvpas	     ?	N  N	(Win95) Pro Audio Spectrum driver
 0000h	NECATAPI     ?	N  N	(Win95)
 0000h	NICE	     ?	N  N	(Win95)
 0000h	NTI4CDR	     ?	Y  Y	NTI CD-R/CD-RW
 0000h	NV3	     ?	N  N	(Win95SR2)
 0000h	NWNBLINK     N	N  N	(Win4Workgroups 3.11) Netware NetBIOSOne of a number of low-level device-independent network interfaces; the other major interfaces are Novell's IPX and the Internet's IP (Internet Protocol, the lower-level portion of TCP/IP).
 0000h	OAK		N  N	(Win95) Oak Tech display driver
 0000h	OCTK32		N  N	(W4Wg)
 0000h	OTCETH		N  N	(W4Wg)
 0000h	PARALINK	N  N	(Win95)
 0000h	PARALLAX	?  ?	IrDA Infrared Parallax framer VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0000h	PCNTN3		N  N	(W4Wg)
 0000h	PE3NDIS		N  N	(W4Wg)
 0000h	PPM		N  N	(Win95)
 0000h	PROTEON		N  N	(W4Wg)
 0000h	QEMMFix		N  N
 0000h	QIC117		N  N	(Win95) QIC-117 floppy-ctrl tape drive
 0000h	QPI		N  N	QEMM Programming Interface (see INT 67/AH=3Fh)
 0000h	RMM		N  N	Real-Mode Mapper for hw with real-mode drivers
 0000h	S3		N  N	(Win95) S3 display driver
 0000h	S3INFO		N  N
 0000h	S3MINI		N  N	S3 display driver
 0000h	SAGE		N  N	(Plus!) System Agent
 0000h	sage		N  N	(Plus! for Win95) System Agent
 0000h	scsi1hlp	N  N	(Win95)
 0000h	SERENUM		N  N
 0000h	SERIAL	     N	N  N	(Win4Workgroups 3.11) DOS386 Serial Device
 0000h	SERWAVE	     ?	N  N
 0000h	SETP3	     ?	N  N	(Win95) Silicon Ethernet Pocket Adapter
 0000h	SLMSDENM     ?	Y  Y	
 0000h	SMARTVSD     ?	N  N	(EZ-SMART???)
 0000h	SMC8000W     ?	N  N	(W4Wg)
 0000h	SMC80PC	     ?	N  N	(W4Wg)
 0000h	SMC8100W     ?	N  N	(W4Wg)
 0000h	SMC8232W     ?	N  N	(W4Wg)
 0000h	SMC9000	     ?	N  N	(W4Wg)
 0000h	SNIP	     ?	N  N	(W4Wg)
 0000h	SOCKET	     ?	N  N	(W4Wg)
 0000h	SOCKETSV     ?	N  N	(Win95)
 0000h	SPAP	     ?	Y  Y	(Win95)
 0000h	SPENDIS	     ?	N  N	(Win95)
 0000h	SRAMMTD	     ?	N  N	(Win95) flash-memory driver???
 0000h	STLTH64	     ?	N  N	Diamond Stealth64 driver
 0000h	STLTHMON     ?	N  N
 0000h	T20N3	     ?	N  N	(W4Wg)
 0000h	T30N3	     ?	N  N	(W4Wg)
 0000h	TCTOK	     ?	N  N	(W4Wg)
 0000h	TSENG	     ?	N  N	(Win95) Tseng Labs display driver
 0000h	UBNEI	     ?	N  N	(W4Wg)
 0000h	UNIMODEM     ?	?  ?	(Win95) Universal Modem(contraction of MOdulator/DEModulator) Driver
 0000h	VDEF	     ?	N  N	(Win95)
 0000h	VGATEWAY     ?	N  Y	(Win95) dialin gateway
 0000h	VIDEO7	     ?	N  N	(Win95) Video7 display driver
 0000h	VRomD	     ?	N  N	(Win95)
 0000h	VStDspcD     ?	?  ?	Quarterdeck Stealth D*Space
 0000h	VXDMON	     ?	?  ?
 0000h	WD	     ?	N  N	(Win95)
 0000h	WINTOP	     ?	N  N	(Windows95 Power Toys)
 0000h	WSHTCP	     ?	N  N
 0000h	XGA(Extended Graphics Array)	     ?	N  N	(Win95) XGA(Extended Graphics Array) display driver
 0001h	VMM	     ?	N  N	Virtual MachineOne method for multitasking programs is to virtualize the CPU and other hardware, giving the appearance of sole possession of the system to each program being run.  Such a virtualized environment is called a virtual machine.  See also Virtual-86 Mode, Virtual DOS Machine. Manager
 0001h	VMM	     ?	Y  Y	Windows95 Virtual MachineOne method for multitasking programs is to virtualize the CPU and other hardware, giving the appearance of sole possession of the system to each program being run.  Such a virtualized environment is called a virtual machine.  See also Virtual-86 Mode, Virtual DOS Machine. Manager
 0002h	Debug	     ?	?  ?
 0003h	VPICD	     ?	Y  Y	Virtual Prog. Interrupt Controller (PIC) Device
 0004h	VDMAD	     ?	N  N	Virtual Direct Memory AccessA method whereby peripherals may transfer data into or out of main memory without the involvement of the CPU. (DMAsee Direct Memory Access) Device
 0005h	VTD	     ?	Y  Y	Virtual Timer Device
 0006h	V86MMGR	     Y	N  N	(Windows3.x) Virtual 8086 Mode Device
 0006h	V86MMGR	     ?	N  Y	(Win95) Virtual 8068 Mode Device
 0007h	PageSwap     ?	N  N	Paging Device
 0008h	Parity	     ?	N  N	Parity-check trapper
 0009h	Reboot	     ?	N  Y	Ctrl-Alt-Del handler
 000Ah	VDD	     ?	N  Y	Virtual Display Device (GRABBER)
 000Bh	VSD	     ?	N  N	Virtual Sound Device
 000Ch	VMD	     Y	Y  Y	Virtual Mouse Device
 000Dh	VKD	     ?	N  Y	Virtual Keyboard Device
 000Eh	VCD	     ?	N  Y	Virtual COMM Device
 000Fh	VPD	     ?	N  Y	Virtual Printer Device
 0010h	VHD	     ?	?  ?	Virtual Hard Disk Device (Windows 3.0)
 0010h	BLOCKDEV     Y	N  N	Virtual Hard Disk Device (Windows 3.1)
 0010h	IOS	     N	N  N	(Win4Workgroups 3.11) DOS386 IOS Device
 0010h	IOS	     ?	Y  Y	Windows95 I/O Supervisor
 0011h	VMCPD	     ?	Y  Y	(Windows3.x) Virtual Math CoProcessor Device
 0011h	VMCPD	     ?	N  Y	(Win95) Virtual Math CoProcessor Device
 0012h	EBIOS	     ?	N  N	Reserve EBIOS page (e.g., on PS/2IBM PS/2, any model)
 0013h	BIOSXLAT     ?	N  N	Map ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. 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. between prot & V86see Virtual-86 Mode mode
 0014h	VNETBIOS     Y	N  N	Virtual NetBIOSOne of a number of low-level device-independent network interfaces; the other major interfaces are Novell's IPX and the Internet's IP (Internet Protocol, the lower-level portion of TCP/IP). Device
 0015h	DOSMGR	     Y	Y  N	DOS data instancing (see #02656)
 0016h	WINLOAD	     ?	?  ?
 0017h	SHELL	     ?	N  Y	(Windows3)
 0017h	SHELL	     ?	Y  Y	(Win95)
 0018h	VMPOLL	     Y	N  N
 0019h	VPROD	     ?	?  ?
 001Ah	DOSNET	     ?	N  N	assures network integrity across VMs
 001Ah	VNETWARE     ?	Y  Y	Novell NetWare DOSNET replacement
 001Bh	VFD	     ?	N  N	Virtual Floppy Device
 001Ch	VDD2	     ?	?  ?	Secondary display adapter
 001Ch	LoadHi	     ?	N  N	Netroom LoadHi Device (RMLODHI.VXD)
 001Ch	LoadHi	     ?	N  N	386MAX LoadHi Device (386MAX.VXD)
 001Ch	LoadHi	     ?	N  N	Win386 LoadHi Device (EMM386.EXE)
 001Dh	WINDEBUG     ?	N  Y
 001Dh	TDDebug	     ?	N  Y
 001Eh	TSRLoad	     ?	?  ?	TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination. instance utility
 001Fh	BiosHook     ?	?  ?	BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. interrupt hooker VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 0020h	Int13	     N	N  N
 0021h	PageFile     Y	N  Y	Paging File device
 0022h	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.	     ?	?  ?
 0022h	APIX	     ?	N  Y	(Win95)
 0023h	MCA_POS	     ?	?  ?	Microchannel Programmable Option Select
 0024h	SCSIFD	     ?	?  ?	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. FastDisk device
 0025h	VPEND	     ?	?  ?	Pen device
 0026h	APM	     ?	?  ?	Advanced Power Management
 0026h	VPOWERD	     ?	Y  Y	(Win95) power management
 0027h	VXDLDR	     N	Y  Y	(Win4Wg 3.11/Win95) VXD Loader
 0028h	NDIS(Network Driver Interface Specification) A hardware-independent network interface developed by Microsoft and 3com.  See also Packet Driver, TCP/IP.	     N	Y  Y	(Win4Wg 3.11) Network Driver Interface Spec
 0029h	???
 002Ah	VWIN32	     ?	N  Y	(Win95)
 002Bh	VCOMM	     N	Y  Y	(Win4Workgroups 3.11) DOS386 VCOMM Device
 002Ch	SPOOLER	     ?	N  N	Windows95 print spooler
 002Dh	W32S	     Y	N  Y	WIN32s 32-bit extension to Windows 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.
 002Eh	???
 002Fh	???
 0030h	MACH32	     N	N  Y	ATI Mach32 video card
 0031h	NETBEUI	     N	N  N	(Win4Workgroups 3.11) NETBEUI
 0032h	SERVER	     N	Y  Y	(Win4Workgroups 3.11) Int21 File Server
 0032h	VSERVER	     ?	N  Y	(Win95) Int21 File Server
 0033h	CONFIGMG     ?	Y  Y	(Win95)
 0033h	EDOS	     ?	N  N	Windows DOS Box Enhancer by Mom's Software
 0034h	DWCFGMG.SYS  ?	Y  ?	DOS Plug-and-Play configuration manager
 0035h	SCSIPORT     ?	N  N	(Win95) virtualized access to 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. adapter
 0036h	VFBACKUP     ?	Y  Y	(Win95)
 0037h	ENABLE	     ?	Y  Y	(Win95)
 0038h	VCOND	     ?	Y  Y	(Win95)
 0039h	???
 003Ah	VPMTD	     N	N  Y	(Win4Workgroups 3.11) IFAX Scheduler Device
 003Bh	DSVXD	     ?	Y  N	DoubleSpace VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. from MS-DOS v6.x
 003Ch	ISAPNP	     ?	N  N	(Win95)
 003Dh	BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly.	     ?	Y  Y	(Win95)
 003Eh	WSOCK	     ?	Y  Y	(Win95) WinSock
 003Fh	WSIPX	     ?	N  N	(Win95) IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. WinSock
 0040h	IFSMGR	     ?	N  N	(Win95)
 0041h	VCDFSD	     ?	N  N	(Win95) CD-ROM File System Driver (MSCDEX)
 0042h	MRCI2	     ?	N  N	(Win95) DriveSpace3
 0043h	PCI	     ?	N  N	(Win95)
 0048h	PERF	     ?	N  N	(Win95)
 004Ah	MTRR	     ?	N  N	(Win95SR2) PPro/P-II MTRR enumerator???
 004Bh	NTKERN	     ?	N  Y	(Win95SR2)
 0051h	ISAPNP	     ?	N  N	(Win95) ISA(Industry-Standard Architecture) The expansion bus used by the IBMInternational Busiuness Machines PCIBM PC/ATIBM PC AT.  See also EISA. Plug-and-Play manager
 008Dh	ESDI_506     ?	N  N	(Win95) MFM(Modified Frequency Modulation) A method of encoding data as a series of magnetic flux reversals on disk or tape, commonly known as double-density recording.  In contrast to FM, modified frequency modulation omits all clock pulses except those between pairs of zero bits.  See also FM, RLL./RLL(Run-Length Limited) A method of encoding data as a series of magnetic flux reversals on disk or tape.  RLL can achieve higher data densities than MFM recording because it encodes the data such that (on average), fewer than one flux reversal per data bit is required (however, timing becomes more critical).  RLL is actually an entire family of encoding methods, specified with two numbers indicating the minimum and maximum distances between one bits (flux transitions).  The variant normally called RLL is RLL-2,7; RLL-1,7 and RLL-3,9 are also in use.  MFM is in effect RLL-1,3.	 See also FM, MFM./ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over.	 An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive.	 See also IDE. disk driver
 0090h	voltrack     ?	N  N	(Win95) Volume Tracker
 00FDh	FAKEIDE	     ?	N  N	(Chicago)
 0102h	CV1	     ?	N  N	Microsoft C/C++ 7.00+ CodeView for Windows
 011Fh	VFLATD	     ?	N  Y	(Win95)
 0200h	VIPX	     ?	Y  Y	NetWare Virtual IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver
 0200h	VTEMPD	     ?	?  ?	dummy template driver by Ray Patch
 0201h	VNWLSERV     ?	N  N	NetWare Lite 1.1 Server (SERVER.EXE)
 0202h	WINICE	     ?	Y  Y	SoftICE/W
 0202h	SICE	     ?	Y  Y
 0203h	VCLIENT	     ?	N  Y	NetWare Lite 1.1+ Client
 0205h	VCAFT	     ?	N  N	Novell Virtual CAFT Driver (LANalyzer for Win)
 0205h	BCW	     ?	Y  Y	Nu-Mega Bounds Checker for Windows
 0206h	VTXRX	     ?	N  N	Novell Virtual TXRX Driver (LANalyzer for Win)
 0207h	DPMSsee DOS Protected-Mode Services	     N	Y  N	Novell DOS Protected ModeOne of the operating modes of the 80286 and higher Intel processors, in which addresses used by programs no longer correspond to physical addresses and the CPU enforces various protection mechanisms designed to prevent one program from disrupting other programs or the operating system.  See also Real Mode, Virtual-86 Mode. Services
 0234h	VCOMMUTE     ?	Y  Y	PCIBM PC Tools Commute
 0442h	VTDAPI	     ?	N  Y	MMSys Win386 VTAPI Device
 0443h	???
 0444h	VADMAD	     ?	?  ?	Autoinitialize DMAsee Direct Memory Access (Windows 3.0)
 0445h	VSBD	     ?	Y  Y	WinResKit: Sound Blaster Device
 0446h	VADLIBD	     Y	Y  Y	MMSys Win386 AdLib Device (v3.x)
 0447h	???
 0448h	SETULTRA     ?	?  ?	Gravis UltraSound setup
 0449h	vjoyd	     ?	N  Y	(Win95) joystick
 044Ah	mmdevldr     ?	Y  Y	(Win95)
 044Bh	???
 044Ch	msmpu401     ?	N  N	(Win95) MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. driver
 044Ch	cwdmidi	     ?	Y  Y	(Crystal???) MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. driver
 044Dh	msopl	     ?	N  N	(Win95) OPL-3 (SoundBlasterA common sound card developed by Creative Labs. FM(Frequency Modulation)	A method of encoding data as a series of magnetic flux reversals on disk or tape, commonly known as single-density recording.  In frequency modulation, a series of clock pulses are written at regular intervals, with one data bit for each clock pulse.  See also MFM, RLL.) driver
 044Eh	mssblst	     ?	N  N	(Win95) SoundBlasterA common sound card developed by Creative Labs. MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. driver
 045Dh	VflatD	     ?	N  Y	dva.386, part of WIN32s
 045Eh	???
 045Fh	mssndsys     ?	?  ?	Microsoft Sound System audio driver
 045Fh	azt16	     ?	Y  Y	Aztech Sound Galaxy 16 audio driver
 0460h	UNIMODEM     ?	N  Y	Universal Modem(contraction of MOdulator/DEModulator) driver
 0480h	VNetSup	     N	Y  Y	(Win4Workgrps 3.11) Virtual Network Support
 0481h	VRedir	     N	N  N	(Win4Workgroups 3.11) Redirector File System
 0481h	VREDIR	     ?	N  N	(Win95) Redirector File System driver
 0482h	VBrowse	     ?	Y  Y	Win386 Virtual Browser
 0482h	SNAPVXD	     ?	Y  Y	(Win95)
 0483h	VSHARE	     ?	N  N	(Win4Workgroups) Virtual SHARE
 0483h	VSHARE	     ?	Y  Y	(Win95) Virtual SHARE
 0484h	IFSMgr	     Y	N  Y	(Win4Wg 3.11) Installable File SystemAn Installable File System which allows non-DOS format media to be used by DOS.	 In most ways, an IFS is very similar to a networked drive, although an IFS would typically be local rather than remote. See also INT 21h Function 52h. Manager
 0485h	???			???
 0486h	VFAT	     N	Y  Y	(Win4Workgroups 3.11) Win386 HPFS Driver
 0487h	NWLINK	     ?	Y  Y	Win386 Virtual Packet Exchange Protocol
 0487h	NWSUP	     Y	N  N	NetWare Vnetbios shim
 0488h	VTDI	     ?	N  N	(Win95)
 0489h	VIP	     ?	Y  N	(Win95)
 0489h	FTCVIP	     ?	Y  Y	Frontier Technologies' VIP
 048Ah	VTCP	     ?	Y  ?
 048Ah	MSTCP	     ?	Y  N	(Win95) TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP. stack
 048Ah	FTCTDI	     ?	Y  Y	Future Technologies' TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP. stack
 048Bh	VCache	     N	Y  Y	(Win4Workgroups 3.11) Virtual File CacheCaching is a method of increasing performance by keeping frequently-used data in a location which is more quickly accessed. The most common caches are disk caches (store disk sectors in RAM) and RAM caches (store portions of main memory in special high-speed RAM which may be accessed as fast as the CPU is capable of accessing memory). See also Delayed Write, Write-Through.
 048Bh	VCACHE	     ?	Y  Y	(Win95) disk cache
 048Ch	???			???
 048Dh	RASMAC	     ?	Y  Y	enhanced mode Win4Workgroups RASMAC device
 048Eh	NWREDIR	     ?	Y  Y	(Win95)
 048Fh	???			???
 0490h	???			???
 0491h	FILESEC	     ?	?  ?	(Win95) File Access Control Manager
 0492h	NWSERVER     ?	?  ?	(Win95)
 0493h	SECPROV	     ?	?  ?	(Win95) Security Provider
 0494h	NSCL	     ?	Y  Y	(Win95)
 0495h	AFVXD	     ?	N  N	(Win95)
 0496h	NDIS2SUP     ?	?  ?	(W4Wg???) NDIS2 networking support
 0497h	MSODISUP     ?	N  N	(W4Wg???)
 0498h	Splitter     ?	N  N	(Win95)
 0499h	PPPMAC	     ?	Y  Y	(Win95)
 049Ah	VDHCP	     ?	Y  Y	(Win95)
 049Bh	VNBT	     ?	Y  Y	(Win95) NetBIOS-over-TCP/IP(Internet Protocol) The lower level (transport layer) of the TCP/IP protocol suite.	See also TCP, TCP/IP. driver
 049Ch	???
 049Dh	LOGGER	     ?	?  ?	(Win95)
 04A2h	IRLAMP	     ?	?  ?	IrDA Infrared Enumerator VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 097Ch	PCCARD	     ?	N  Y	(Win95) (see INT 20/VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.=097Ch)
 1020h	VCV	     ?	?  ?	Microsoft C/C++ 7.00 CodeView
 1021h	VMB	     ?	Y  Y	Microsoft C/C++ 7.00 WXSRVR
 1022h	Vpfd	     ?	Y  Y	Microsoft C/C++ 7.00
 1025h	MMD	     ?	Y  Y	Microsoft C/C++ 8.00, Visual C/C++ 1.00
 2020h	PIPE	     ?	Y  Y	by Thomas W. Olson, in Windows/DOS DevJrn 5/92
 21EAh	VADLIBWD     ?	N  Y	Adlib Waveform Driver by John Ridges
 2200h	VFINTD	     ?	Y  Y	Norton VFINTD (Norton Desktop)
 22C0h	???	     Y		Rational Systems DOS/4GW ???
 2402h	ZMAX	     ?	N  N	Qualitas 386MAX v7 DOSMAX handler
 24A0h	VNSS	     ?	N  Y	Norton Screen Saver (Norton Desktop)
 24A1h	VNDWD	     ?	Y  Y	Norton VNDWD Device (Norton Desktop)
 24A2h	SYMEvent     ?	Y  Y	Norton Utilities v8
 2540h	VILD	     ?	Y  N	INTERLNK client from MS-DOS v6.x
 2640h	VASBID	     ?	N  Y	WinResKit: Artisoft Sounding Board Device
 2860h	COMMTASK     N	N  Y	Windows 386-mode preemptive tasker by James
				  A. Kenemuth of Interabang Computing
 28A0h	PHARLAPX     ?	Y  ?	PharLap inter-VM communications DLLsee Dynamic Link Library
 28A1h	PharLap	     Y	Y  Y	PharLap 386|DOS-Extender DOSXNT.386
 28C0h	VXD	     N	Y  Y	Generic VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. for real and protected mode by
				  Andrew Schulman in MSJ February 1993
 28C1h	PUSHKEYS     ?	?  ?	VKD_Force_Keys device
 28C2h	VCR3D	     ?	?  ?	Virtual CR3, by A.Schulman in MSJ October 1992
 2925h	EDOS	     ?	Y  Y	Enhanced DOS by Firefly Software
 292Dh	VSBPD	     ?	Y  Y	Sound Blaster Pro
 295Ah	GRVSULTR     ?	Y  Y	Gravis UltraSound / UltraSound ACE
 3048h	FTCTCPIP     ?	N  Y	Frontier Technologies' TCP/IPThe protocol suite originally developed by DARPA for use on its ARPAnet network, which is now known as the Internet.  See also IP, TCP. stack
 3049h	???			(called by FNFSC32.VXD, FrontierTech's VNFSD)
 304Ch	DWCFGMG.SYS  ?	Y	Plug-and-Play configuration access
 3098h	VstlthD	     N	N  N	for QEMM Stealth ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. mode
 3099h	VVidramD     ?	Y  N	for QEMM VIDRAM support
 30F6h	WSVV	     ?	N  Y	(Win95) WinSock for Voice-View Modems???
 310Eh	WPS	     ?	N  Y	MS DevNet CD-ROM: Windows Process Status
 3110h	VGSSD	     ?	Y  Y	VSGLX16.386 for Aztech Sound Galaxy 16
 313Bh	PMC	     ?	?  ?	Power Management Coordinator
 318Ah	LMOUSE	     ?	Y  Y	(Win95) Logitech mouse???
 31CFh	STAT.386     ?	?  ?	Ton Plooy's processor statistics VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 3202h	VdspD	     ?	N  N	(Win95)
 3203h	vpasd	     ?	N  N	(Win95) Pro Audio Spectrum driver
 32A4h	SBAWE	     ?	Y  Y	(Win95) SoundBlasterA common sound card developed by Creative Labs. AWE driver
 32A5h	VSB16	     ?	N  N	(Win95) SoundBlasterA common sound card developed by Creative Labs. 16 driver
 32CBh	VFRAD	     ?	Y  Y	Dr.Franz - Simultan's diagnotics VFRAD.386
 32DCh	NV3RM	     ?	N  Y	(Win95SR2)
 3354h	Discover     ?	N  Y	(Nuts&Bolts) Discover
 33AAh	DECCORE	     ?	Y  Y	(Win95) DEC Pathworks core VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
 33B4h	DECLICL	     ?	N  N	(Win95)
 33F0h	VIWD	     ?	Y  Y	Gravis UltraSound Plug-n-Play Interwave v1.x
 33FCh	ASPIENUM     ?	N  N	(Win95)
 34DCh	MAGNARAM     ?	N  Y	Quarterdeck MagnaRAM (MAGNA31.VXD/MAGNA95.VXD)
 357Eh	DSOUND	     ?	Y  Y	(Win95) DirectSound
 3584h	VSNDSYS	     ?	Y  Y	(Win95SR2)
 35C5h	LUGEPS	     ?	Y  Y	Lugaru's Epsilon editor
 36AEh	AIB-PC.386   ?	Y  Y	Sunset Laboratory interface hardware driver
 377Bh	MX1501HAD    ?	?  ?	Cherry keyboard chipcard reader
 38BEh	Vheapx	     ?	N  Y	(Nuts&Bolts) Virtual Heap Expander
 38C0h	Bombshel     ?	N  Y	(Nuts&Bolts) Bombshelter
 38DAh	VIWD	     ?	Y  Y	UltraSound PnP InterWave driver v2.0beta
 39E6h	A3D	     ?	N  N	(Win95SR2)
 3A39h	CINEMSYS     ?	Y  Y	Software Cinemaster MPEG/DVD decoder
 3BFCh	CWCSPUD	     ?	N  N	(Win95SR2)
 3BFDh	CWCPROXY     ?	N  N	(Win95SR2)
 3BFEh	CWCMMSYS     ?	N  Y	(Win95SR2)
 3BFFh	CWCDSND	     ?	N  N	(Win95SR2)
 3C46h	X10MOUSE     ?	Y  Y	X10 RF wireless mouse
 3C78h	VGARTD	     ?	N  N	(Win95SR2)
 3E6Dh	DDRAW	     ?	Y  Y	DirectDraw
 3ED6h	ATIVVXXX     ?	N  Y	ATI Rage128-based video card
 3EE5h	WINTEL.VXD   ?	?  ?	"WinTel" Windows remote-control program
				(see also PORTIBM PC Portable (uses same BIOS as XT) 063Eh)
 4321h	POSTMSG	     ?	Y  Y	(see #02712)
 4321h	VPCD	     ?	N  N	PCache
 4321h	avvxp500     ?	N  N	(Win95) VxP500 driver
 6001h	REGVXD	     ?	Y  Y	Windows95 Registry Monitor helper
 7A5Fh	SIWVID	     Y	Y  Y	Soft-ICE for Windows video driver
 7FE0h	VSWITCHD     ?	Y  N	by Jeff Prosise
 7FE0h	VWFD	     N	Y  Y	reports windowed/fullscreen state; by Neil
				  Sandlin of Microsoft, shipped with ANSIPLUS
 7FE1h	VWATCHD	     N	Y  Y	basic driver w/ no functionality except tracing
				  by Keith Jin of Microsoft PSS
 7FE5h	VFINTD	     N	Y  Y	Virtual Floppy Interrupt trapper by Neil
				  Sandlin of Microsoft
 7FE7h	VMPAGES	     N	Y  Y	demonstration of exporting VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. services, by
				  Neil Sandlin of Microsoft
 7FE8h	VPOSTD	     ?	Y  Y	PostMessage() demo by Curtis J. Palmer of MS
 7FE9h	VIdleD	     N	N  N	demonstration of Call_When_Idle function, by
				  Bernie McIlroy of Microsoft
 7FEBh	VMIOD	     N	N  N	Virtual Monitor I/O Traffic Device, by Neil
				  Sandlin of Microsoft
 7FEDh	VMIRQD	     N	N  N	Virtual Monitor IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Traffic Device, by Neil
				  Sandlin of Microsoft
 8888h	VbillD	     ?	?  ?	Bill Potvin II's for reversing Compaq LTE video
 EEEEh	VEPSD	     ?	N  N	Virtual Extended Paging Services for
				  Borland C++ v4.0
Notes:	The high bit of the VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. ID is reserved for future use. Originally,
	  the next 10 bits were the OEM(Original Equipment Manufacturer) a company which purchases components that are resold as part of its own products under the company's own brand name, e.g. a Gateway 2000-branded monitor may actually be a Mag or NEC monitor. number which was assigned by Microsoft,
	  and the low 5 bits were the device number.  Currently, Microsoft
	  assigns VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. IDs individually for each driver; send blank email to
	   for more information.
	"CallOut"=Y indicates that the VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. uses the INT 2F/AX=1607h/BX=VxDID
	  device callout interface; "PM" and "V86see Virtual-86 Mode" indicate whether the VxDA virtual device driver for Windows 3.x or 95.	So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver.
	  provides an 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 in protected mode and Virtual-86 mode
	  (e.g. DOS boxes)