Even with the LPE connection fix you need to obtain a fresh one if you previously downloaded one more than 30 days ago. Otherwise the connection file it will install will be over 30 days old and same scenario. I know how to fix this on Mac OSX but not windows. File_Girl71 provided a small file that should help protect the connection file if LW5 has not been used in 30 or more days.
LimeWire-FiX2.zip