Difference in VS .NET compiling?

[martys]

Followup: It still doesn't work.

However, I've narrowed down the problem. It doesn't have to do with anything in the SourceSafe database. There is a step that creates a "dictionary" (for different languages) that properly gets compiled from the IDE, and not from VisBuild. So when I do a build from VisBuild, it skips compiling the dictionary if it's already compiled from the IDE. What's the difference between compiling from the IDE and from the command line? Is there a different compiler that VS .NET 2005 uses? Or are there some options I need to select?

Second follow up: Changing to use devenv.com made the build work. Why should that be different?