Delete $PLUGINSDIR onGUIEnd

I want to delete the ns***.tmp folder when my installer is closed/aborted/canceled however, some of the plugins I'm using don't have an Unload function. Is there anyway to delete the plugins directory without unloading a few plugins? Or perhaps to have the directory deleted upon reboot? Can anyone please let me know how it can be done..

What plugins are these?
The directory should be deleted on reboot. If it isn't then use:
RMDir /r /rebootok $PLUGINSDIR

-Stu

$PLUGINSDIR should be deleted when the installer exits, if not, you are using a plugin wrong or a possible plugin bug