Here is another challenge how can we make WPI check if the program is allready installed on the disk say i want to check if acdsee is installed so it should check if the file "%programfiles%\ACD Systems\ACDSee\8.0.Pro\ACDSee8Pro.exe" exist and if so, WPI will forbid the installation of acdsee could it be done using the conditions box ? I hope you guys understand what i mean and thanks alot for all your help