PRB: Codeview for Windows Does not Run in Windows 95 and NT

• Microsoft Macro Assembler for Windows NT, versions 6.11, 6.11a, 6.11d, 6.12
• Microsoft Visual C++ for Windows, 16-bit edition, version 1.52
• Microsoft Visual C++, 32-bit Edition, version 5.0

SYMPTOMS

Codeview for Windows (Cvw.exe) which is included with Microsoft MASM version 6.11 and 16-bit editions of Microsoft Visual C++ does not run in the Microsoft Windows 95 and Microsoft Windows NT operating systems.

If you run Cvw.exe in Microsoft Windows 95 you may get one or both of the following error messages:

   "Could not load debuggee, Windows is out of memory (1)"

   "Could not load debuggee,  Unknown error in Windows (22)"

   "CVW1.386 is not loaded in SYSTEM.INI. Please reinstall CVW"

STATUS

This behavior is by design.

MORE INFORMATION

You can use CodeView (Cv.exe) for MS-DOS in Microsoft Windows 95 and Microsoft Windows NT for debugging MS-DOS applications.

Usually MASM version 6.11 code is written as an MS-DOS .EXE file and CodeView for MS-DOS (Cv.exe) can be used to debug this type of application. Rarely do programmers write Windows applications in MASM.

Windows applications written in MASM can be debugged using the Visual C++ integrated debugger (use version 1.52 if you are writing a 16-bit application, or use version 4.0 or later if you are writing a 32-bit application). Create a dummy project, using the same name and project directory as the MASM .EXE file, in the Visual C++ IDE. Start the debugger and ignore all the messages about the project build.

Note that the Programmers Work Bench (PWB) used for developing MASM programs works in both Windows 95 and Windows NT. It is advisable that you run the New-vars.bat file in an MS-DOS window from the \Binr folder of the MASM installation before using PWB.