Same. It's Downloaded And unzipped, But It Doesn't Actually Open.
I'm no means the developer, but from my understanding a lot of the issues with it not working properly come from:
a) Using the built in Windows Extractor
b) Not having the .NET 4.5 installed
c) A UAC issue where the program doesn't have all the privledges it needs to function properly.
Do any of these things sound true to your situation?
Again, I'm not the developer so I'm sure there could be a laundry list of other issues that are possible. However, always good to start with the basic!