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edits
Changes
GnuEmacs
,add upgrade entry which is a copy/paste of the install entry
<check type="uninstall" condition="exists" path="Gnu Emacs 22.1" />
<install cmd='"%SOFTWARE%\emacs221.exe" /S' />
<upgrade cmd='"%SOFTWARE%\emacs221.exe" /S' />
<remove cmd='"%PROGRAMFILES%\Gnu Emacs 22.1\uninstall.exe" /S' />