Actually I have read your mini tut on TweakRAM, but the file corrupted message in Registry Defragmentation seems far more complex, in TwekRAM if I remember right, all you had to do is change 4 conditional jumps to JMP's, this one has about 12 calls to the error message, and all sorts of avenues lead to those calls, it is a frigging nightmare, if I had an ounce of sense I'd let it go, but for some reason I cant, grrrrrrrrr