Although too late for you, but as a warning to others, limewire is notorious for trojans (which this is) and stuff and should be avoided at all costs.
A quick google reveals what seems to be a fix/removal of the trojan
here
To clean up LimeWire 2.0.2 you need to:
+ kill any running adp.exe and bargins.exe processes.
+ Remove the \program files\adp\ directory
+ Remove the \program files\Bargain Buddy\ directory
+ Remove the entry for adp.exe and bargins.exe from HK_LOCAL_MACHINE..run.
+ Remove HK_LOCAL_MACHINE\SOFTWARE\Microsoft\adp\ (the cheek!)
+ Install & run Lavasoft Add-Aware 5.62 (it doesn't seem to spot "Ad
Popper")
+ Check any personal firewall logs for oddities.
+ Run LimeWire - javaw
+ Check any personal firewall logs for oddities