Extract the rar somewhere then. And then run it. A security program without an install program? oO
The prog's website
www.hihisoft.com has only a youtube downloader. Looks like the prog is discontinued...
version 4.1 seems to be the latest, try to get a download link from google. Install it, do what I said, see if it works.
Before that, did you try to boot in safe mode and check if its accessible?