Windows Media Player 9 and XP and your are receiving error messages when attempting to restore licenses? (KB886610)
Getting error “0xC00D11B4 -- Windows Media Player cannot restore your licenses because no backed up licenses were found on your computer…”
Then possibly you may want to check out this hotfix.
Hotfix: Windows Media Player 9 Series for XP (KB886610)
“Some Content providers set the AllowBackupRestore right when protecting content with DRM. In certain scenarios end users may receive an error message when attempting to restore licenses ”