>Since the behavior of the taskbar is a user preference, you should not be messing with it in any case - I scrap any piece of crap software that messes with the position, size or behavior of my taskbar, which isn't always a single line at the bottom of the desktop. Tell the user to adjust it by right-clicking on the Start Menu button.

Sorry for blank reply.

What I'd assumed was required here was a "full-screen" mode, quite a lot of s/w, which wouldn't be classified as crap, give this option, which gets rid of the task bar etc temporarily - do you know how to do this ?