AutoIt [http://www.hiddensoft.com/AutoIt/] is a simple tool that can simulate key presses, mouse movements and window commands (maximize, minimize, wait for, etc.) in order to automate any windows based task (or even windowed DOS tasks).  

Download just the DLL at http://www.hiddensoft.com/cgi-bin/countdown.pl?AutoIt/AutoItDLL.zip 

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'Nother example of why it's handy to have AutoIt around:
suppose you've launched a program that puts itself in the
background.  Rather than use Win32 calls to bring it to
the foreground and make it active, you can
    exec AutoIt focus.aut '+self.filename' -$TheApplication
where focus.aut has contents
    WinShow,%1%,
    WinActivate,%1%,