How do I enable "slow motion" window animations?

Hey all,

I've found a reg tweak to enable "slow motion" window animations. I've
followed these directions:

1. Open up Regedit.
2. Navigate thru HKEY_local_machine, Software, and Microsoft.
3. Create a new KEY called DWM if it is not aleady there.
4. Create a new DWORD called AnimationsShiftKey inside the DWM folder.
5. Set the new DWORD that you just created to a value of 1.
6. Restart your computer for the effect to activate.

Once you have restarted, just hold down the shift key to see any of the
window animations in slow motion.

When I hold down shift, the animations are the same. Does anyone know of how
to get this to work?

Thanks!