oh, you mean the apps foundable in:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Management\System Programs

and which have additional info in:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths

now, what is the problem of removing them?
as example, if you decide not to install calculator during setup, the exe mostlikely is still in your system folder.
setup just does not add the icons.
at least, that was the case before...

now, reading the info from here and removing the exe's should do, no?
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