Running 'helper' programs,

I'm planning to create a small level generator (A standalone command line app) for a game of mine. I'd then like to serialize the levels and read them through my game. Through testing it seems like you need to serialize and deserialize in the same c# package. So my question is; is there any way to create and run programs in the same package as my game? Alternatively; is there any way to make serialized objects 'portable'?