yes you guys are right i created a iso image of the doom3 directory and mounted using demon tools it ask for cd2 oh well , i opened the doom3 MSI file with an hex editor changed the DOOM3_1 ,DOOM3_2,DOOM3_3 strings to just DOOM3 i safed and created the iso again (volumelabel the iso DOOM3) and mount it and it now it works flawless that was easy
