I'm working on an old dos app, trying to modify it to run sucessfully in dosbox, however i've run across an issue. It seems that it uses a native function for which i don't have the source which requires the environment variable comspec to be set, however it always returns that it cannot find it in the environment.

I can use a getenv type function to return it within my app, and it has the right value, so the function must use some other call, is there a way i can find out what the call is or why this is failing?

Has anyone else ever heard of this kind of issue with environment variables?