I recommend trying this more simple approach to backing up the registry.
1. Click
Start /
Run and type in "
regedit" (no quotes).
2. Next, click the
File menu,
Export 3. Select a location from the resulting box and give your backup registry a
name. Something like:
Regbackup 02-14-2006. <-- I just put todays date.

Just a quick note: by default, Windows backs up the registry when you shut down your machine. The above is probably best used for those (like myself) who are editing registry settings, such as we are about to do!
1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\In procServer32The (Default) value data should contain the following value:
C:\WINDOWS\SYSTEM32\JSCRIPT.DLL If it does not, double-click Default, type
C:\WINDOWS\SYSTEM32\JSCRIPT.DLL in the Value data box, and then click OK.
4. The ThreadingModel value data should contain the following value:
BothIf it does not, double-click ThreadingModel, and then type Both in the Value data box.
5. Locate the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb558}\In procServer32 6. Repeat steps 3 and 4 to edit this key, and then go to step 7.
7. Exit Registry Editor.
Reboot and open WMP. Does it work now?
David