Runtime error in Visual Studio !

[WILL]

I have a quick question about Visual C++, how can I add the small box below the text code to watch the variables got error at run-time. I means sometimes there's a little box below show which variables is out of range...But some times it don't show anything . It just show the box that say send error or don't send to Microsoft. Can anyone help me out ? thanks !

[MXP]

You only see the window that shows the variables when you are debugging the program in Visual C++.

[WILL]

Thanks Collin, I've got it T_T!