Can anyone help me identify which program this is and how I can disable it or remap it to another key combination?
EDIT: OS Windows 7 Ultimate
I have attached a screenshot of the screencapture application interface:
Interesting. There are a couple of ways you can identify it with a bit of investigation.
Go to msconfig and take a look through the startup tab and see if you can see an exectuable that might be it. Then you can untick it.
Go to task manager and look through the list of processes and see if you can see which one it is.
I took a quick look around to see if there was a utility that can identify the exectuable that owns a window. Spy++ might do it, from Microsoft. The other one I thought of is strokeit - which is actually a mouse gestures utility, but it has a facility for identifying a window.
Once you identify it, you can disable it from msconfig.
I had the same strange Screen-Capture on my Computer as I accidentally pressed CTRL+F1. I figured out, that this is a Function from the Maxthon Browser. As soon as I close this Browser CTRL+F1 does not bring up this anymore. Could be probably the same thing for you.