You most certainly do. I jut found that out when I had to declare use Tk::CheckButton before it would work for me.

One question though... I tried it with a Tk app I wrote, but it keeps bringing up a DOS window when I run it. Of course the DOS window doesn't stay on as long as running a Tk app straight from windows, but I'm curious what the advantage is -- if any -- for converting Tk apps with this program?

Some people fall from grace. I prefer a running start...