Thanks Tom for your suggestions, I thought for sure you pointed me in the right direction,default type associations-restore, and brinks tutorial is excellent, very easy to follow, but it did not work, So last night i did a vista repair, as i do have the repair disc, let it run overnight as i know it takes a few hours, this morning did the updates and everything seems fine, I was able to install the program with no problem, Patch41.
ps, tipped the scales.