Hello, Congratulations for your development. I'm using wpi for a long time and I think is the greatest thing I've ever used. I've created two installation CD's, one for installing my applications in english windows, and one for installing my applications in greek windows. I'm doing this, because of the cleanup command which has to be diferent because of the special folders that are different in each language of windows (desktop, programs, startup, etc.). I think that this can be solved with an universal option, a check box for each language that wpi must read in the beginning of the installations and put it in the "special" commands that uses. for example: Two check buttons one EN and one GR. In the beginning of the installation the wpi will read this and where it is finding the command "cleanup.cmd" it will run it, as "cleanupEN.cmd" Universal options can also created for defining from which disk the installation will begin "%systemdrive%\install..." or "%cdrom%\install..." You may also have some ideas for using universal options. I hope you like this idea thank you