Asset can be cleared to default settings, to do so uninstall Asset.

Browse to:

HKEY_LOCAL_MACHINE\SOFTWARE\Illustrate\dBpoweramp

Can copy the value in 'DefaultUserPath' to Start >> Run (to open that path).

(it will either be %appdata%\dbpoweramp\umedialibrary or C:\Documents and Settings\Default User\Local Settings\Application Data\dbpoweramp\umedialibrary)

Delete the umedialibrary folders, then reinstall Asset UPnP.