Try download Tweakui133 and do that.
From: Staffan H [mailto: XXXX@XXXXX.COM ]
Posted At: Monday, October 13, 2003 5:31 PM
Posted To: misc
Conversation: Problem uninstalling programs
Subject: Problem uninstalling programs
Uninstalling programs using the add/remove program in control panel
will no function, all programs are grey and buttons not clickable. The
following message appears: "unecpexted error, class not registered,
res://appwiz.cpl/listbox.htc line:225" Updating with new appwiz.cpl
from a functioning pc will not help.
Any suggestions what to do?