FYI the older (earlier than LW 4.4) versions of LW could be uninstalled 2 ways. One was using the Add/Remove Programs Control panel, or else, if you had the international version then you would find an installer within the program folder.
I don't know how well the present version can uninstall them. But if there's no problems then it must have done ok. LW 4.1.6 was a beta from memory.
BTW why was this LimeWire question not posted in the
Limewire Forum sections. This section is for general queries that do not deal with specific p2p programs. Looks as though this thread will be moved.