This is abnormal--there should be an add/remove entry.
You could use the reference Engel gives and blow away the .MSI bits for the
program, and then also delete the installation folder and all subfolders.
Your installation was never completed, so if you are blowing it away based
on the experience with this incomplete install--you might want to try it
again at some point--to see if you can get a correct install. Might want to
wait 'til after July 31st or so when there's a rev'd version available.
