posted this on September 08, 2011 15:11
This article applies to Ant.com Video Downloader for Internet Explorer version 220.127.116.11 or earlier versions
While attempting to update or uninstall Ant.com Video downloader toolbar version 18.104.22.168 or lower, a message box with the following error appears: There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support or package vendor.
This problem may occur for a number of reasons, one of them is because the registry information of one of the binary components of the toolbar was deleted or corrupted.
In order to fix this issue one can useProgram Install and Uninstall throubleshooterprovided by Microsoft support services: