Keyboard Shortcut - Ctrl + ;

As you probably know, in some programs, Excel for example, pressing Ctrl + ; adds todays date to the cell.
We use Excel a lot in the office so this would be very useful in my Xojo project as well.
But, when i press Ctrl+; the keydown event doesn’t fire. It works with other key combinations, Ctrl + d for example.

Is this a Windows problem or is there a way around it?