"The computer Whisperer"

Problem: Set Windows Music Player as default (XP)

1. Select Start->Set Program Access and Defaults and skip to Step 5. Click Start 
2. OR... Control Panel 
3. Then select Add or Remove Programs Control Panel 
4. Select Set Program Access and Defaults Select 
5. Expand under Custom Set Prog 
6. Scroll down to "Choose a default Media Player." Select "Windows Media Player."

OK. and you are done.
setp 5