I'm on Windows 7 Ultimate, and I have a fully licensed version of Dxtory. I'm having problems launching it, but in task manager the UpdateCheker appears but the program itself doesn't even start. Also when I did start it once, and I tried to record a full screen game, it didn't actually record anything, it just gave me a file that was unreadable and just didn't want to play. I will give any specifications if needed, but I can say that I'm currently using Comodo Internet Security Premium, right now as my anti-spyware.
Thanks in advance,
Demonwolf2198
Install Microsoft .NET Framework (http://www.microsoft.com/en-us/download/details.aspx?id=17851) and make sure it's fully updated through Windows Updates. Also try disabling any security software you have to pin-point what is blocking Dxtory from properly turning on.