Have problem setting up WPF test

Hello,

 I am trying to set up the WPF manages test, and I have downloaded the following file: RadControlsForWpfSetup_2011_3_1222.exe.  I am having the same set up problem as this line

 I have tried the following to fix the issue:

 1) I have restarted my device and make an effort to set up again.

 2) I check the specialist index in the "temp" directory, shift this index to a different place, and make an effort to set up as an administrator (My computer is running in Ms Windows 7)

 3) I disabled my anti-virus system temporarily and make an effort to set up the test.

 4) Rebooted again, I instantly disabled anti-virus and tried again.

 5) Finally I decided the debug choice on the mistake screen and released VS2010.  Connected is the mistake from Visible Facilities.

 I also have .NET 4 setup on this device as well as the Telerik Silverlight manages, so I do not think the specifications are the problem.  Do you have any extra thoughts I could make an effort to set up the test software? It will be much appreciated if you can kindly help me out.

COMException was unhanndled

Error HRESULT E_FAIL has been returned from a call to a COM component.

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Check the ErorrCode property of the exception to determine the HRESULT returend by the COM object.

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