I believe part of the problem is the fact that Aa.exe fil B is created BY packaging multiple library files And or graphics , arrays ETC. and there is no default order into which part of the EXE file they land. there are some Tools ... hex editors come to mind. I seem to recall NOPING out A jump or two in my younger days edit: the these days that probably wouldn't work due to CRC checks... but there was a time... Then again that may be just the perfect place to start riverus engineering;) smile I have some good memories of playing a Medal of honor in which I changed all the door Textures to transparent window textures and having to work around CRC protection... good times smiley :)