I just loaded a legal copy of xp pro, completed all windows updates, loaded some a/v codecs, antivirus, etc. My problem is a .key file I need for an application I'm running. My other computer (xp pro) recognizes it as a registration entry, opened with the registry editor. The computer in question (xp pro) recognizes it as a key file and does not know what to open it with. If I have windows search the internet for a program to open it with it does not find anything (no reccomendations). If I force it to open with notepad, it will, but then it sees it as a text file. I tried forcing it to open with regedit, but it still recognizes it as a key file and not a registration entry. I've put this key on a externel hard drive and looked at it with several other computers. Some recognize it, some don't. I can't figure out what else I need to load to get this file recognized properly as a registration entry. Any suggestions?