MAMEXT32 V0.128u4, previously named MAMEXT is a cool unofficial version of MAMEUI with highscore save included. (You will need the hiscore.dat file in order to use this feature). MAMEXT32 also has some extra features that plain vanilla MAME doesn’t. MAMEXT64 .128u4 is the 64bit optimized version of the emulator, which will run on Windows 64bit operating systems. Download MAMEXT32 .128U4  and/or MAMEXT64 0.128u4 at  our MAME page.