i had the same problem w/ the dll file. re-installed the operating system and still no luck - downloaded the dll file from the net and got the link error message. came to this forum for some answers and found the reply by ClansAreForGays (OMG HE MUST BE SMARTER THEN EVERYBODY ELSE AND HE JUST GOT HERE). i downloaded the larger back-up file and installed it and everything is working great again. i should have came here in the first place - it would have save me alot of time.
here's the link to the larger back-up file
http://www9.limewire.com/download/LimeWireWin-full.exe
try it and let us know.

thank you CAFG