This may be the same virus that they are discussing in this tread or it may be some other.
http://www.gnutellaforums.com/showth...+keeps+opening
read carefully through the post, even though it's long
BTW that is for windows. It all depends on what OS you use
If you can't find help there, then use the search option. I found that by typing "Limewire keeps opening" and got a lot of results.
If after reading and maybe trying all the things in all the treads. If it's still acting up, then post again with a lot more info (OS and other thingd that may be relevant) + what you found out about your specific problem + how you have tried fixing it
Then it will be a lot easier for someone to help