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Sigma Studio 3.7 under Windows 8

Hello,

I have upgraded my OS from Win 7 too Win 8. But now SigmaStudio is not longer running.

The only error-message is from Win 8 this says SigmaStudio can not executed.

I tried to start SigmaStudio in compatibility mode without effect. 

Is SigmaStudio not compatible with Win 8? Or is there a other problem?.