Yes, the reason is VBScript is only a subset of visual basic. You can't really use that form Dim vbArray(2) as Double. In fact, I was suggesting you to try it in Visual Basic or VBA (I use Excel sometimes to do that! :-) As far as the syntax, Dim vbArray(3) is the one that I used with another API and it works fine. BTW, VBScript will pass your data as an array of variant. One good thing about getting older, you don't lose the ages you've been!

My tests (VC6 and Borland CPPB4) disagree with yours - the copy constructor is called for the catch declared as taking a reference. For a function that takes a reference, it's true that the CC isn't called - the trick here is that the throw() operand causes a copy of its argument to be created. Check out "C++ Exception Examples" in the MSDN.

The reason that an exception doesn't occur in this code in release is because the optimizer will throw all the code away as it does nothing... As soon as you include the cout z has to around so a value can be displayed hence the exception - In a debug build no code is optimized hence you get the behaviour expected.

That's not simple. You have to draw the caption by yourself. I don't know what to do exactly, but you have to handle many window messages, such as WM_NCPAINT, WM_NCACTIVATE and more...