Interesting

bitzi lookups are just a way to check out info based on the file "hash" (exact file signature). You can also get the SHA-1 hash by right-clicking a file in LW's library, Advanced->Magnet Link details


I'm on a Mac, so never even tried the bitzi file generator. Still, that's pretty nasty if it installs that junk.

AFAIK, LW and Bitzi have no current business relationship, and the lookup link has been a somewhat useful part of LW for a long time. Really, there's no need to remove the Bitzi Lookup since it sounds like the tool you found was not part of LW, and no one else I know uses it.

As for getting your LW to run again, try deleting LW and starting again with a fresh download.