I am using   Windows 7 Home Premium 64 bit. I'm sorry but I didn't quite understand does answering yes to your questions  mean to go ahead and make the modifications? I await your response. I like the sound of changing the main file to unlimited so all aircraft I put weapons on are already loaded with unlimited. That would be my preference if I have a choice. I would like to say with the v1.01 the sound is much much better and I appreciate the programing problems that this has caused. Thanks again!