Windows XP MFU

[HELP!]

How do I modify the contents of the MFU list in the Start Menu in XP?

I need a reghack to do it as manually running it is not a solution http://images.thetechguide.com/forum/public/style_emoticons/<#EMO_DIR#>/wink.gif\' class=\'bbc_emoticon\' alt=\'\' />

Does anyone know where Windows keeps that stuff?

[XPMFU]

also how does XP know which programs are "newly installed apps" like it says on the Start Menu

"New programs Installed"

Answers only plz, dont ask for reasons