FIX: MFCN30.DLL and MFCN30D.DLL Not Copied with Win32S Setup

 Last reviewed: September 18, 1997
Article ID: Q129782
2.10 WINDOWS NT kbsetup kbbuglist kbfixlist

The information in this article applies to:

  • The Microsoft Foundation Classes (MFC) included with: Microsoft Visual C++, 32-bit Edition, version 2.1

SYMPTOMS

An attempt to run an MFC application that uses the socket classes generates the following File Error under Win32s: 

   Cannot find MFCN30D.DLL
Then when you click the Close button, the following error appears: 

   Cannot Run Program
   Unexpected error: 21.
NOTE: A release build of an application would list MFCN30.DLL instead of MFCN30D.DLL in the first message box.

CAUSE

The Win32S setup included on the Visual C++ CD does not copy MFCN30.DLL or MFCN30D.DLL.

RESOLUTION

Copy MFCN30.DLL and MFCN30D.DLL from the CD to the WINDOWS\SYSTEM directory of the Win32S machine:

  • MFCN30.DLL can be found on the CD in this directory: \MSVC20\REDIST
  • MFCN30D.DLL can be found on the CD in this directory: \MSVC20\DEBUG

If your application has a set-up program, make sure it also copies these files.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This problem was corrected in Microsoft Visual C++, 32-bit Edition, version 2.2.

Additional reference words: 2.10 3.10 CSocket CAsyncSocket win32-s
KBCategory: kbsetup kbbuglist kbfixlist
KBSubcategory: vc20setup MfcSockets
Keywords : MfcSockets vc20setup kbbuglist kbfixlist kbsetup
Technology : kbMfc
Version : 2.10
Platform : NT WINDOWS
Solution Type : kbfix

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Last reviewed: September 18, 1997
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