Download and install this program...RegSeeker

*Freeware* (Guaranteed Virus/Malware/Spyware Free)

Once you have installed this program, run it.

Click on "Find Files in Registry"

Type LimeWire

When the search has completed, untick the check box for "backup deleted items"

Choose only the keys that have the word "limewire" highlighted in blue.

Delete those keys.

Click Start
Search
All Files and Folders
More Advanced Options
Search Hidden Files and Folders

Type LimeWire

Delete all files and folders found for LimeWire.

If you have a dynamic IP such as with ADSL or Cable try releasing and renewing your connection through your router.

Any other questions let me know.

Good Luck!