Are you sure that the folder's not within C:\Documents and Settings\your username?

The saving & sharing default locations are different in the latest versions & there's now a LimeWire Shared & LimeWire Saved folder.

If the folder you're seeing is a saved or shared folder, you can try changing that location from within LW's tools > options > saving, or tools > options > sharing.

Otherwise, go to this other forum (where a developer might answer your question). I haven't found any undeletable/unmovable folders in the new version but if you're having that problem, this other forum's the place to ask.
LimeWire Forums - Powered by vBulletin