I don't know if this exists, but it would be REALLY useful if it did.
Last night, my wife booted into Windows on my PC. She usually does it to play one game that won't run on her PC. Anyway, I don't know what she did, but I got infected with a really nasty piece of malware. So, I'm currently in Linux cleaning it out
Anyway, I'll probably end up back in Windows to manually fix the registry. It would make things REALLY easy if there was a Windows Registry Editor for Linux. Does such a thing exist?