DOCUMENT:Q125476 29-JUL-2001 [visualc] TITLE :PRB: Error "...MSVCRT20.DLL is not compatible with Win32s" PRODUCT :Microsoft C Compiler PROD/VER:2.0 2.1 2.2 4.0 4.1 OPER/SYS: KEYWORDS:kberrmsg kbCRT kbVC kbOSWin32s ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - The C Run-Time (CRT), included with: - Microsoft Visual C++, 32-bit Editions, versions 2.0, 2.1, 2.2, 4.0, 4.1 ------------------------------------------------------------------------------- SYMPTOMS ======== When running a Win32-based application that was linked with MSVCRT.LIB on Win32s, a message box titled "MSVCRT??.DLL for Win32" displays the message "Error: This version of MSVCRT??.DLL is not compatible with Win32s" where ?? specifies the runtime version. The application terminates following this message. CAUSE ===== There are two versions of each MSVCRT??.DLL -- one for Win32s and one for Windows NT/Windows 95. If you use the wrong version on Win32s, the error described above occurs. The following is a list of Visual C++ versions and the runtime DLLs that are included with them: Visual C++ File Size Date / Time ---------- --------------- -------- ----------- 2.0 WIN32S\REDIST\MSVCRT20.DLL 237,568 09-12-94 / 7:00a 2.0 MSVC20\REDIST\MSVCRT20.DLL 243,200 09-12-94 / 8:00a 2.1 WIN32S\REDIST\MSVCRT20.DLL 244,736 01-20-95 / 9:46a 2.1 MSVC20\REDIST\MSVCRT20.DLL 250,368 01-20-95 / 9:45a 2.2 WIN32S\REDIST\MSVCRT20.DLL 244,736 01-20-95 / 1:46a 2.2 MSVC20\REDIST\MSVCRT20.DLL 253,952 02-23-95 / 11:32a 4.0 WIN32S\DEBUG\MSVCR40D.DLL 437,760 09-29-95 / 9:33p 4.0 WIN32S\REDIST\MSVCRT40.DLL 320,000 09-29-95 / 9:35p 4.0 MSDEV\DEBUG\MSVCR40D.DLL 439,296 09-29-95 / 9:25p 4.0 MSDEV\REDIST\MSVCRT40.DLL 312,832 09-29-95 / 10:06p 4.1 WIN32S\DEBUG\MSVCR40D.DLL 439,296 02-14-96 / 4:43p 4.1 WIN32S\REDIST\MSVCRT40.DLL 332,048 02-07-96 / 3:24a 4.1 MSDEV\DEBUG\MSVCR40D.DLL 444,928 02-19-96 / 5:05P 4.1 MSDEV\REDIST\MSVCRT40.DLL 326,656 02-19-96 / 5:03p RESOLUTION ========== On the Visual C++ product CD, you will find the Windows NT/Windows 95 version of the runtime DLL in the MSVC20\REDIST or MSDEV\ directories shown above and the Win32s version of the runtime DLL under the WIN32S\ directories shown above. The files that end with the letter "D" are the debug versions of the libraries which are accompanied by a debug info file that has the same name and a ".PDB" file extension. You should ship both release versions of the runtime DLL with your application if it is to be run under Win32s. Your setup program should detect which platform you are installing the application under and copy the appropriate DLL. Install the Win32s version in the WINDOWS\SYSTEM directory of your Windows or Windows for Workgroups machine. MORE INFORMATION ================ A similar error occurs if the Win32s version of MSVCRT??.DLL is used on a Windows NT machine or a Windows 95 machine. The error's title is "MSVCRT??.DLL for Win32s," and the message is: Error: This version of MSVCRT??.DLL is only intended for Win32s. Additional query words: ====================================================================== Keywords : kberrmsg kbCRT kbVC kbOSWin32s Technology : kbVCsearch kbAudDeveloper kbCRT Version : 2.0 2.1 2.2 4.0 4.1 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.