I don’t want to waste to much time. I installed horizon and two things appeared on my desktop, both called installer.exe. Or at least they claim to be .exe’s, because when whatever the program is that runs .exe’s (I forget the name) says it can’t, and that’s because, through further investigation, they’re not .exe’s at all, they’re text documents. The most annoying part is, my computer can’t decide if they’re real or not. I can’t rename them because they DO exist, but I can’t delete them because they DON’T exist. Can someone help me please. I tried this on my dad’s computer and the exact same thing happened, so I’m pretty sure it’s not a problem with my computer.
Download horizon from the link in my signature.
Thanks, I was having the same problem. Thanks for the download link 
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Horizon wont open, the logo comes up on the screen then nothing happens?
Hey! Next time try not to hijack threads. To fix this, make sure you have both .NET Framework 3.5 and 4.0 installed. Then run as admin.