Just did a clean install now. Uninstalled GameEx and deleted the c:\gameex folder, manually removed all entries on registry about GameEx. Rebooted. Downloaded a new copy of MAME64 (mame0162b_64bit.exe), created a mame.ini file and pointed it to my roms directory. Same with GameEx, downloaded last version from Tom's website and installed it on c:\gameex. Edited GameEx.ini file just to change default mame and roms paths. It scanned for games on startup. When it finished, same results, same missing games. I attach all the info I have, showing the game on MAME GUI list and running without any issues. Thanks again GameEx.ini mame.ini