I Confirm Thats Shark007 said... In several test, the other codes DESTROY MPG, M2TS, Ac3, MPxs, Files. In Several Test I Need to REINSTALL THE OS (Windows 7 Ultimate 64) because unistalling the codes IS NOT THE SOLUTION. Is Most important DO TOUCH the natives codes build-in W7. The BIG Problem is FFDSHOW tryouts.......... I Don´t Test in 32 bits. But I thing is the same..... Shark007 Codes + Add 64 bits Works fine in W7. I Use to play ONLY Mkv files.