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Vielleicht hilft dies etwas weiter:
The "...\MSDev98\Bin" directory contains Vcspawn.exe
On Windows NT, Windows 2000, and Windows XP, Visual C++ repeatedly invokes a background process called vcspawn.exe for each command-line tool executed by the development environment. Tools such as Cl.exe, Link.exe, and Bscmake.exe run in the Vcspawn.exe environment, which is a 32-bit console application. Usually Vcspawn.exe is invoked as a hidden window and you never see it.
Building applications from the integrated development environment (IDE) may fail, with the following message subsequently displayed in the output window: Error spawning 'vcspawn.exe'. The build could not be performed. The message does not identify why the build could not be performed. There are several known causes for this message:
The environment used by the IDE does not have the correct directories to search for such tools as Vcspawn.exe. The ComSpec environment variable may be incorrectly defined. The system's NULL device may be disabled or missing (Microsoft Windows NT only).
Although all of these are valid reasons for a build to fail, Visual C++ does not provide enough information to identify the specific cause of the failure or how to resolve it.
The following are four suggested resolutions:
siehe: http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q236092&
