How to Debug An External Module

[fox12]

I have two programs. The first program will call the second one by CALLING _spawnl(...). The two programs were developed by other developers. How can I debug the second program by starting the first in Debug mode? Please note that I don't know the inputs and outputs for the second program.

Thanks.

 

[PerFnurt]

>by starting the first in Debug mode?

Is there such a mode for the application?

Do you have debug info, .pdb files, for the application?
If not you won't be able to debug it.

If yes you can let the app start and then attach Visual Studio to it:
Menu->Build->Start Debug->Attach to Process...

/Per
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