So long ago, yesteryear if you will, I downloaded Sims2Pack Clean Installer, after using it I figured, "Well, I'm done with it, so I might as well delete it." Delete it, not uninstall it. Ugh.
I am now regretting this because when I downloaded the most recent version and tried to open it, I get a message saying, "A previous version of Sims2Pack Clean Installer You have to uninstall old version first! Do you want to do it now? [Yes] [No]"
If I click yes, nothing happens, it just closes the prompt. If I click no, the same thing happens.
Any help would be appreciated.
EDIT: I've read that it may have something to do with the Registry Keys, and I have no experience whatsoever with fiddling with them, so any help as to how I would do that would be great as well.