Iphone 4 jailbreak evasi0n.zip file won't open?

I'm trying to download the newest version of evasi0n to do an untethered jailbreak for my iphone 4. But when i try to download teh evasi0n 1.4 file and i try to open it my computer responds saying it can't find the application

what do i do?

Try to download it from another source.

Download "WinZip" and then open evasion using the program.

If you want to jailbreak the right way, here's a step by step tutorial on how to do it:

Here are some cool things you can download once you're jailbroken:

Hope this helps you out!