Purehd.msi - After installing Corel Paintshop Photo X3 my machine kept asking for Purehd.msi and PSPPro.msi which is not on the pc.
I just called Corel 4/7/11, they say it is a known issue that started after patch 2. So they say uninstall the product and re-install and only add patch 2. They also said they are "re-creating" their knowledge base so nothing new is in it on this one at this time. They are working on this problem. http://www.corel.com/servlet/Satellite/us/en/Content/1153321224268?pid=1259872271743
(I've been dealing with this since 2010)