this MAY work (it should)
My computer > C Drive > Program Files > Limewire > RIGHT Click the file "LimeWire.exe" > (a list should drop) click open
if this does work then that just mean something is wrong with the shortcut youve got
if u dont want to go through with that process everytime, copy and paste the "LimeWire.exe" file in your desktop!

lemme know if it works!