THCemployEE

Alright as you can tell I'm new to the forum, but not new to the game. I've had ARMA 2 for over three months now and had started the DayZ mod not too long after purchasing the Combined Operations Bundle. I used to have no problem getting online and hopping right into a server, but since the updates and patches and whatnot I've had nothing but trouble. I finally re-downloaded the games themselves and re-installed all the files and whatnot, which I've done multiple times and I know I've done everything correctly, accept for one thing. My first installation I had trouble with BattlEye, it was a quick and simple fix of going to the site and downloading the file to my computer and dragging it into my BattlEye folder. So after finally re-downloading everything I run the game and attempt to join a server and to my surprise "BattlEye Initialization Error" pops up on the screen, I figure no big deal, and go on the BE site as I had before to download what I need to my computer. After trying to open my download, this pops up "This file does not have a program associated with it for preforming this action. Please install a program, or if one is already installed, create an association in the Default Programs control panel." ..What in the hell do I need to do? I'm about to throw my computer out the window at this point -__-