Hi Marcin,
What do you mean when you say that the TOC is probably broken in VS when you install the VS Extensions for WinFX?
Just as an FYI: when you install the VS Extensions for WinFX is does swap out some of the .NET Framework content in the TOC with the WinFX SDK content, so the TOC will look a bit different.
Also, what version of VS 2005 are you using? Beta 2 is the only supported version at this time for WinFX runtime, the WinFX SDK, and the VS WinFX Extensions.
Thanks,
Keith