Well esentially, what you would need to do is duplicate the registry entries of the application from W2K in WinME. This might involve just copying a single tree. But, more often than not, applications make entires into the regitry in multiple places, so the only way that I know of to get a correctly working version of the program in 2 OS' is to re-install them in both OS' into the same location. Seeing as you aren't necessarily taking up any more space with the 2nd install, it makes perfect sense to allow it's install program to do what it needs..Regards