Cannot Keep One Note From Being Indexed

Another index/search problem that I just can't seem to stop, ...and that is the indexing of Microsoft 2007 "Onenote". I've already searched for threads/and read many tutorials on this issue of the indexing & search and read many from Shawn (Brink) and they work for most objects when de-selected in control panel / index options, but with "OneNote", this stubborn sob, will keep adding itself back to the index once its opened the next time. When in the control panel/index options, their its sits all by itself. Its always listed by itself and is not buried in the users folders where the onenote directories & backup's are. When I un-tick "OneNote" in Ctrl panel / Index Options and then select rebuild, it remains unlisted, as its not even seen anymore in the list. But once I open "OneNote", and go to index options, sure enough its listed and checked again, and is being indexed. I've tried going into Local group policy editor "Search" and tried removing by the path to the OneNote Folders and Files. It was done so by path.