Pazabot,
I have been running Limewire Pro v.5.2.13 on my Windows XP operating system for a long time with previous versions before that and have never had a problem until about a week ago. I click on the program and after scouring for limes, it opens up and then closes about 30 seconds later. I tried several different things none of which worked however, a simple fix has resolved the issue. Here's what I did:
(click on the following tabs from the desktop)
My Computer>Control Panel>Security Center>Internet Options>Security>Trusted Sites>Sites. Then add the following two sites to the zone:
https://limewire.com and
https://limewire.exe
That's all I did and I haven't had any problems since! I know it's a lot of clicking but it only takes about 2 mins. Good luck.