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

ID: Q129782

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 query words: 2.10 3.10 CSocket CAsyncSocket win32-s

Keywords : kbsetup kbMFC kbVC kbWinsock vc20setup
Version : winnt:
Platform : winnt
Issue type :