i checked my event log and found the same error. i dl and ran that patch, and so far (its been about 10 minutes) limewire is functioning correctly.
i was experiencing the same prob as everyone else with high cpu and ram usage. the wierd thing is taht limewire is still using the same amount of cycles and ram, but now eerything else isnt slowing to a crawl like it would when i ran limewire before. its still sorta slow, but thast just because its written in java
as with other solutions this may or may not work for everyone else, but worked for me.