Zias, the game i'ld like to start is Dungeon Master 2 Game Folder: D:\Intrplay\Skulkeep\skull.exe I set D: to D:\Intrplay , then cd skulkeep ,but i can't start the exe, i write when i'm in d:\skulkeep>skull.exe , but then the error visits again Error [35] : Unexpected Interrupt=0000 in DOS4GW.exe at …