FAQ (1) Using the WinGSL DLL's from the precompiled set of libraries with .NET. Everything compiles and links fine, but the application crashes when started. Make sure that you are using the .NET specific WinGsl.DLL and WinGslD.DLL libraries. Under VC++ 6.0 these DLL's are linked to MSVCRT.DLL respective MSVCRTD.DLL, but under .NET they are linked to MSVCR71.DLL and MSVCR71D.DLL. If you are not sure which set you've downloaded use the Dependency Walker on WinGsl(D).DLL or recompile the source code set with the .NET environment.