Latest update for AHP not compatible with Vista 32bit?

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My AHP software alerted me of an update. After I installed it and rebooted the machine, I went to reopen the AHP program and it had an error message. Unfortunately, I forgot the message error. After making several attempts of windows restore and uninstalling the program and reinstalling the same message was appearing. I went online and downloaded an older update and now the AHP software works fine. Just for fun, I repeated all of these steps and narrowed this problem to the newest update. Anyone else having problems with the newest update with Vista 32bit?