The LimeWire program doesn't contain any adware/spyware/viruses ect. It is the content being shared that contains the adware/spyware/viruses ect, and LW doesn't control what is being shared. The Basic version of LW which is free has a window asking you to purchase Pro but you can close it and you won't see it again until you restart the program.
Get it from the official site:
http://www.limewire.com/english/content/download.shtml
It is a good prog. You need to be smart about what you download and have a good anti-virus running and up to date. This thread has a lot of good info in it:
WARNING: Viruses on network you should be aware of!.
Hope this helps. If you have any ?s. Post them in the forums
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