Q137335: Error Message: Invalid VxD Dynamic Link Call from…
Article: Q137335
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 95
Operating System(s):
Keyword(s): win95kbfaq
Last Modified: 17-DEC-2000
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The information in this article applies to:
- Microsoft Windows 95
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SUMMARY
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This article describes the three parts of the following error message:
Invalid VxD dynamic link call from <Part 1> to device <Part 2>,
service <Part 3>
MORE INFORMATION
================
Normally, an Invalid Dynamic Link Call error message is the result of an
incompatibility between driver versions, or a damaged or missing driver. Try
uninstalling and then reinstalling any programs or components that you installed
recently (before the error message occurred).
The error message stated above may occur because your computer is configured
incorrectly. This may be due to a device driver that was added or removed
recently.
Part 1
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- Part 1 may be divided into an encoded device name, object number, and offset,
such as "VMM(0A) + 0000001C." This example means the problem was detected in
the VMM virtual device driver, in object 0A, at offset 0000001C.
- If Part 1 is an eight-character sequence of letters and numbers, such as
"C13A1EC6," a device driver jumped to an invalid location. The identity of
the driver could not be determined.
If this is the case, restart your computer in Safe mode by pressing the F8 key
when you see the "Starting Windows 95" message, then choosing Safe Mode from
the Windows 95 Startup menu. If the error message does not reoccur, the
problem may be caused by one of the installed device drivers. For information
about how to create a new System.ini file without third-party drivers, see
the following article in the Microsoft Knowledge Base:
Q140441 Creating a New System.ini File Without Third-Party Drivers
Part 2
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- If Part 2 is the name of a device (such as VMD), the named device driver
should be upgraded to a Windows 95-compatible version.
When this type of error occurs, it means Part 1 requested that Part 2 perform
an operation that Part 2 does not support. This typically means that there is
a version mismatch between the two drivers.
If this is the case, make certain Part 1 and Part 2 are compatible. If the
driver identified in Part 2 is provided with Windows 95, make sure the driver
identified in Part 1 is designed for Windows 95.
The driver identified in Part 2 may not be compatible with Windows 95
because a newly installed program may have replaced the Windows 95
standard driver with a customized driver. This is typically the case
for device drivers marked with an exclamation point in the table below.
- If Part 2 is a four-character sequence of letters and numbers, such as
"0418," a device driver required by the system could not be found. See the
below table for a list of commonly encountered device drivers and their
identification numbers.
If this is the case, install the missing driver or remove the driver
identified in Part 1 that requires it.
Part 3
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Part 3 provides the service ordinal (for example, it identifies which service
from Part 2 was requested but could not be satisfied).
If the service number is unusually large (for example, the first two digits are
not both zero), the problem may be that Part 1 is damaged. However, service
numbers as large as 0191 are not unusual if the device driver identified in Part
2 is VMM.
If Part 3 is unusually large, reinstall the driver identified in Part 1.
Remember, Part 1 may contain a device name, an object number, and an offset.
How to Determine a Device Driver's Source
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1. The device driver name may suggest the name of the program that installed it.
For example, CCVKD is the virtual keyboard device driver installed by Carbon
Copy. Virtual devices often begin with the letter "V" and end in the letter
"D." For example, VNAVD is the Norton Anti- Virus device driver.
If you are successful in identifying the source of the driver, remove the
corresponding program.
2. The device driver name may begin with the letters "NW," suggesting that it
may be a Novell NetWare networking driver. Other clues that may identify a
driver as network-related are the presence of the letters "NDIS," "NET," or
"SERVER."
3. If you are unable to identify the program or component that installed the
driver, search the [386Enh] section of the System.ini file for a line with
the following form
Device=<DeviceName>.386
where <DeviceName> is the name of the device driver, possibly with a
path, or possibly with a slightly modified name. For example:
Device=ccvkd.386
4. If the driver that needs to be replaced is one of the Windows 95 standard
drivers, run Windows 95 Setup again, and choose to verify the installation.
The following table lists virtual device drivers you may encounter.
Legend:
# - Indicates a standard Windows 95 driver.
! - Indicates a standard Windows 95 driver that may have been replaced by a
third-party product.
$ - Indicates a driver provided by a third-party manufacturer.
3.0 - Indicates a driver from Windows 3.0.
3.1, 3.11 - Indicates device drivers that have been superseded by drivers in
Windows 95.
ID Driver
No. Name Driver Description
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# 0001 VMM Virtual Machine Manager
# 0002 DEBUG WDEB386 Kernel Debugger
! 0003 VPICD Virtual Programmable Interrupt Controller Device
# 0004 VDMAD Virtual Direct Memory Access Device
! 0005 VTD Virtual Timer Device
# 0006 V86MMGR Virtual 8086-mode Memory Manager
# 0007 PAGESWAP Demand Paging Swap Device
# 0008 PARITY Parity-checking Device
# 0009 REBOOT System Reboot Device
! 000A VDD Virtual Display Device
# 000B VSD Virtual Sound Device
! 000C VMD Virtual Mouse Device
! 000D VKD Virtual Keyboard Device
! 000E VCD Virtual Communications Device
! 000F VPD Virtual Printer Device
3.1 0010 BLOCKDEV Block Device Driver
# 0010 IOS Input/Output Supervisor
# 0011 VMCPD Virtual Math Coprocessor Device
# 0012 EBIOS PS/2 Extended BIOS Device Driver
# 0013 BIOSXLAT BIOS Translation Device Driver
# 0014 VNETBIOS Virtual NetBIOS Device Driver
# 0015 DOSMGR MS-DOS Device Driver
# 0017 SHELL Shell Interface Device
# 0018 VMPOLL Virtual Machine Polling Detection Device
! 3.1 001A DOSNET MS-DOS Network Interface Driver - This driver is
often replaced by third-party network drivers
! 001B VFD Virtual Floppy Device
$! 001C LOADHI EMM386 Memory Manager Driver - This driver is often
replaced by third-party memory managers
# 0020 INT13 Fixed Disk Interrupt Driver
! 3.1 0021 PAGEFILE Paging File Device - This driver is often replaced
by RAM-doubling software
0022 SCSI SCSI Device
0023 MCA_POS MCA_POS Device
0024 SCSIFD SCSI FastDisk Device
0025 VPEND Pen Device
3.1 0026 APM Advanced Power Management Device
# 0026 VPOWERD Virtual Advanced Power Management Device
# 0027 VXDLDR VxD Loader device
# 0028 NDIS NDIS wrapper
# 002A VWIN32 Windows 95 Win32 Support Driver
# 002B VCOMM Windows 95 Communications Device Driver
# 002C SPOOLER Print Spooler
3.1 002D WIN32S WIN32S Driver
3.11 0031 VNB NetBEUI Driver from Windows for Workgroups
3.11 0032 SERVER NetBEUI Driver from Windows for Workgroups
# 0033 CONFIGMG Plug and Play Configuration Manager
3.1 0034 DWCFGMG Configuration Manager for Windows 3.1 and MS-DOS
# 0035 SCSIPORT I/O Subsystem Miniport Loader/Driver
# 0036 VFBACKUP Helper Driver for Backup Applications
# 0037 ENABLE Accessibility Driver
# 0038 VCOND Virtual Console Device for WIN32 Console Subsystem
# 003C ISAPNP ISA Plug and Play Enumerator
# 003D BIOS BIOS Plug and Play Enumerator
# 003E WINSOCK Windows Network Sockets
# 003F WSIPX Windows Network Sockets for IPX
# 0040 IFSMGR Installable File System Manager
# 0041 VCDFSD CD-ROM File System Driver
# 0042 MRCI32 Microsoft Real-time Compression Driver
# 0043 PCI PCI Plug and Play Enumerator
# 0045 EISA EISA Plug and Play Enumerator
# 011F VFLATD Linear Frame Buffer Video Driver
# 0442 VTDAPI Multimedia Timer Services Driver
3.0 0444 VADMAD Auto-initialize DMA
! 0445 VSBD Sound Blaster (Windows Resource Kit) - This driver
is often replaced by third-party sound drivers
# 0460 UNIMODEM Universal Modem Driver
# 0480 VNETSUP Network Support Driver
# 0481 VREDIR Network Redirector
# 0483 VSHARE File Sharing Support Driver
3.11 0484 Old IFSMGR from Windows for Workgroups
# 0486 VFAT 32-bit File System Driver
# 0487 NWLINK 32-bit IPX/SPX-compatible Protocol
# 0488 VTDI TCP/IP Driver
# 0489 VIP TCP/IP Driver
# 048A VTCP TCP/IP Driver
# 048B VCACHE Cache Manager
# 048C VUDP User Datagram Protocol Driver
# 048E NWREDIR Windows 95 NetWare-compatible Redirector
# 0491 FILESEC File Security Driver
# 0492 NWSERVER Windows 95 NetWare-compatible File Server
# 049B VNBT NetBIOS Transport for TCP/IP
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Keywords : win95 kbfaq
Technology : kbWin95search kbZNotKeyword3
Version : 95
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