Depends on what you mean, if you're talking about launching the game then the readme file tells you how
If you just can't access the folder then you might need to use winRAR, I really don't know if me having the program makes that necessary for any folder I compress, but if this is the problem then winRAR has to be the solution
But you know, if you've already figured it out in the hours it took me to respond, then I'm glad you solved it eventually