@DosFreak: ClonyXXL found LaserLok1+2 as protection.

@ all: Thanks for the replys and the discussion. (Went through the registration in the meantime) I just tried to make an image and burn a copy of the original CD-Rom (ClonyXXL and CloneCD) but writing failed. So I will try now the next hints, e.g. Gildos idea: drag files and replace install.exe I'll …