The Help icon is only there when HelpButton = True and MaximizeBox and MimizeBox are both set to False. This is the windows standard. If you really want to go beyond and add a button anyway, you'll have to customize the titlebar.
This is not an easy task, it either involves many hooks, or a complete redesign of the title bar.
Are you sure you want to depart from the Windows standard? Wouldn't it be better to have Help available in the menu or on a toolbar somewhere?
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