What is the Virtual Studio Just in Time Debugger

I have had this coming up quite a lot. A window comes up asking if I want to use the default debugger. I usually click the no box as I once clicked yes and it displayed an error message about an exception occuring.

I don't know what this is and don't recall installing it, nor do I know how to use it

Is it perhaps "Visual Studio Just in Time Debugger"? If so, that would suggest that the computer has Microsoft's Visual Studio software installed, though it isn't an application that I know anything about.

If Visual Studio is installed, its Preferences may include an option to disable Debugging, or the display of Debugging error messages.

Here's how: http://msdn.microsoft.com/en-us/library/k8kf6y2a.aspx

Thanks for the link.
I have looked at something like this before but didn't understand any of it

If you scroll to the bottom of the page on the link, you will find someone has posted "I Found the Tools Menu". That should give you pointer as to what to do. Then it's just a matter of following the instructions at the top of the page.