>I would like to know what are the GUI design standards for windows development. I know for example Win XP use the Font Tahoma as standard.
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>But what are other standards such as font size, the size of buttons on a form, size of toolbar buttons, height of combo boxes and text boxes.
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>Is there any documentaion on this?

I know that MS has something on this. Sorry I don't remember the URL. But at least you could begin by searching on MS site.

Perhaps someone will provide the exact url later.