Make VS.NET, preprocessor directives

[tdauld]

I want to build a project with certain C++ preprocessor directives modified from the default. For example, as if #define DEMO was in effect. I can't find specific information about it in the devenv documentation. I'm using Visual Studio version 7.0.

I can think of a few other ways of doing it:

- Create and select a new configuration
- Include a blank header somewhere and write the directives to that from VBP
- Do a search for the commented out #define and replace it with the uncommented version

None of these solutions are ideal. Any suggestions on passing preprocessor directives to devenv or comment on an alternate solution?

Thanks,
Tim