FIX: Wrong Version of MSVCRT40.DLL(Forwarder DLL) in Windows 95 (154591)
The information in this article applies to:
- Microsoft Visual C++, 32-bit Enterprise Edition 4.2
- Microsoft Visual C++, 32-bit Professional Edition 4.2
This article was previously published under Q154591 SYMPTOMS
The wrong version of MSVCRT40.DLL, known as the Forwarder DLL, may be
copied to the Windows 95 System directory while installing Visual C++
version 4.2. The size, date, and version number of this DLL are:
MSVCRT40.DLL 65,024 Bytes 6/14/96 Version 4.2000.6164
This behavior may cause some applications built with Visual C++ Version 4.0
and 4.1 to break.
CAUSE
If Visual C++ is installed on Windows 95 with a CD-ROM install, then the
MSVCRT40.DLL is copied to the Windows 95 System directory. This DLL may
also be present if a beta version of Visual C++ 4.2 was previously
installed.
RESOLUTION
Copy the correct version of the DLL provided in the Visual C++ 4.2 CD-ROM
MSDEV\REDIST\ANSI directory. The size, date, and version number of this DLL
are:
MSVCRT40.DLL 326,656 Bytes 2/19/96 Version 4.10.6038
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This bug was corrected in Visual C++
version 5.0.
MORE INFORMATION
The REDISTRB.WRI file in the MSDEV\REDIST directory of the Visual C++ 4.2
CD-ROM mentions that the C Run-Time Forwarder DLL MSVCRT40.DLL should not
be redistributed. The redistributable DLLs are the Shared DLL version of
the Visual C++ 4.1 C Run-Time DLL MSVCRT40.DLL available in the
MSDEV\REDIST\ANSI directory, MSVCRT.DLL the Shared DLL version of C Run-
Time, and MSVCIRT.DLL the Shared DLL version of the iostream functions.
The Forwarder DLL, MSVCRT40.DLL, is supplied with the Windows NT 4.0
Operating System. This DLL will be necessary for upward compatibility of
applications built with Visual C++ version 4.0 and 4.1 to run in Windows NT
4.0 and later versions of Windows Operating Systems.
Note that applications built in Visual C++ 4.2 and 5.0 with the /MD
compiler switch only use the MSVCRT.DLL or MSVCRT.DLL and MSVCIRT.DLL
depending on the header files included.
The Visual C++ 5.0 CD-ROM, contains only the MSVCRT40.DLL, Version
4.10.6038, in both the ...\VC\REDIST\ and the ...\VC\REDIST\ANSI\ directories.
The Visual C++ 6.0 CD-ROM contains the non-Forwarder version of the
MSVCRT40.DLL in the ...\OS\System directory. The new version number is 4.21.0000, the size is the same at 326,656 bytes.
The Visual C++ 6.0 Service Pack 3 and 4 contains the non-Forwarder version of the MSVCRT40.DLL in the ...\OS\System directory. The version number is 4.22.0.0, the size is the same at 326,656 bytes.
The Windows NT 4.0 operating system Forwarder version of the MSVCRT40.DLL is version number 4.2000.0.6172. This DLL comes with the operating system and it cannot be redistributed. Do not replace this DLL with any other version. To view the version of the MSVCRT40.DLL, click Properties in Microsoft Windows Explorer. Verify that 4.20 - OS use only. DO NOT DISTRIBUTE is the version.
Windows 2000 operating system Forwarder version of the MSVCRT40.DLL is version number 4.2000.0.6201. This DLL comes with the operating system and it cannot be redistributed. Do not replace this DLL with any other version.
REFERENCES
The following article in the Microsoft Knowledge Base describes what
happens when you replace the proper version of the MSVCRT40.DLL provided in
Windows NT 4.0:
168006
TN3270 Fails with Access Violation in ntdll!RtlFreeHeap
| Modification Type: | Major | Last Reviewed: | 10/24/2003 |
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| Keywords: | kbBug kbfix kbVC500fix KB154591 |
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