Help with Hack/WinRAR

My friend was getting the hack, got WinRAR and everything (he has Vista btw), and he went to download the hack but the .rar file came out as a notepad file with a bunch or random letters and signs.

Help plz?

right click open with win rar

lawl, now I feel like an idiot.
Thanks Gourav, I'll see if it works.

he also need to set the compatibility in the properties