I'm working with some older code, and I think the person who last built it was using Visual Studio 6. There's no .vcproj file, but the .dsp and .dsw files have the following headers: (.dsp)
# Microsoft Developer Studio Project File - Name="[redacted]" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
(.dsw)
Microsoft Developer Studio Workspace File, Format Version 6.00
Does the "Format Version 6.00" correspond to Visual Studio 6?