Can I use a common music library across 2 Windows user IDs?

Question

My Windows XP computer is set up with 2 user accounts. iTunes is installed and all of my music is stored in my Shared Music folder (this folder is in Shared Documents, which is accessible from each user ID).
I want to be able to use iTunes from either Windows user ID. The problem is that iTunes creates and maintains 2 separate iTunes Music Library.xml files. When I'm logged on (user #1), iTunes uses the xml file in my My Documents folder. When my spouse is logged on (user #2), iTunes uses the xml file in her My Documents folder.
This is problematic. If I add a new song to iTunes from my Windows ID (and the song file is placed in the Shared Music folder), it is added to my library and xml file. If my spouse logs on and launches iTunes, the song is NOT in her iTunes library. She has to manually add the file from the iTunes Add File to Library command.
I'd like iTunes to use a single library that both Windows user IDs can use and maintain. I don't want to have to manually try to keep these in sync.
I can't find any setting in iTunes for this, and the user guide doesn't even mention this topic. Any help is appreciated!!!

Answer 1

TheMint,
I think it works like this:
The setting you describe is where iTunes will store the music files themselves (.aac or .mp3, etc.) However, iTunes creates an index of all of your music, and it uses that index to display all of your music in iTunes. The index file is called iTunes Library.xml
The index is stored in the My Documents\My Music folder of the user ID you log in as. Apparently, you cannot tell iTunes to store this in a different location.
So if you create an iTunes library under one Windows user ID, the index is created in that user ID's My Documents\My Music folder. If you then log in as another Windows user ID, iTunes does not see the index that was created by the first Windows user. Thus you do not see any of the music listed in iTunes.