No jo, autor jasně píše, že to testoval na RTM buildu (7600) Tzn. asi by to v tvým případě vyřešil upgrade.

First of all, don't even try to use this plug-in, if you don't have Windows 7. That being said, I didn't test it on beta or RC versions of Windows 7, but others have, and it's "working". It's meant to be used with the RTM version, build 7600.