Ok, I think that we need to take a step back here for a moment. Here's what I understood from your post
1. You are running Windows 7
2. You mentioned Winrar, though I don't see how this is relevant
3. You are trying to run a program called RealTemp 2.70
Now, my first question is have you extracted the files to the location you wish to run the program from? You can use either Winrar or the utility that has come with Windows for time out of mind now.
This Real Temp program is in the .zip format, and I was able to download it from their website, unzip it, and execute the program. Of course it doesn't work on mine because apparently it doesn't support AMD, but that's another story.
The only way you would be missing the compatibility tab and the Run as Administrator is if you are trying to right click on the Zip file itself in which case you will not get the desired results.