I want to write a program (vb6 or .net) to read the tags from all the music
files in WMP10 and place the data in a database so I can update the
information and write it back.

Can anyone direct me to the specification for the layout of the wmv tag?

Or does anyone know of a software package that will do this, either full
application or library file (.dll)?

In addition to WMP10 I use a program called CATraxx to catalog and track
various pieces of information about albums, songs, and artists. I want to
combine the data from this db with that from the wmv tags, then write the
tags back to the song files as well as back to catraxx.

Any help would be appreciated. I tried Google but couldn't seem to find any
info that was helpful. Plenty of tag editors, but nothing that appeared to
do what I want.