Originally Posted by ddkkk . You do not have the possibility to leave the CD-ROM in the drive constantly Solution: Start the program Key to Steel - Stahlschluessel 2007, and then press simultaneously the keys Shift + Ctrl + K The dialog "Disable CD-ROM check" will open. Unlock Key can count: for Verson 2007: Unlock Key =Round( (UserID +221271) * 0.6) Ex_1: UserID=123456 Unlock Key =Round( (123456 +221271) * 0.6) =Round(206836.2) =206836 Ex_2: UserID=123457 Unlock Key =Round( (123457 +221271) * 0.6) =Round(206836.8) =206837