If you're talking about the library database, that's not supported.
If you're talking about where to keep your music files, change the Rip
location in WMP's Tools:Options:Rip menu dialog. =)

--
Speaking for myself only.
See http://zachd.com/pss/pss.html for some helpful WMP info.
This posting is provided "AS IS" with no warranties, and confers no rights.
--

"Cactus" <Cactus@discussions.microsoft.com> wrote in message
news:0FE7C278-8E51-4C8F-A075-BC14355E7697@microsoft.com...
> How do I change the library file location from my hard drive to an
> external
> hards drive?