Go to your Programs folder, find LimWire (LW) program folder & open it, right-click the LW program & choose 'Make Shortcut'.

You can choose to 'send' the shortcut to any location you desire.
BTW the normal way to stop LW starting up when booting the computer is to to LW's menu bar, Tools -> Options -> Advanced -> System startup & uncheck that option.
There are 'some' viruses that create startup links in the system folders such as startup items.
Another way to open LW is to go to Start menu -> All Programs -> LW