Do NOT use any third party program to remove Messenger Plus!. It is always a bad idea to try to remove something with a tool made by somebody else, except in absolute necessity.
If you want to remove Messenger Plus! 3 manually, it'S very simple:
Delete the whole "C:\Program Files\MessengerPlus! 3" directory.
Delete the "Software\Patchou\MsgPlus2" registry key from both CURRENT_USER and LOCAL_MACHINE.
That's all
.