I have a Windows Vista Ultimate machine with Office 2007. Excel 2007 gives the following error when opening, "C:\Program Files\Microsoft Office\Office13\Excel is not a valid win32 application." I tried running an office repair and same problem. I tried reverting the file to a previous date under properties and same problem.
The weird thing is, if I reboot the PC Excel will work fine for a few days and then it will give the same error until I reboot again. One thing I did recently was upgrade Vista to SP1. Office 07 has the latest updates. I was reading an article in a forum and someone had tried to re-install Office and still same problem. Maybe it's an issue with Vista SP1 that Microsoft is not aware of. Any help is much appreciated. Thanks.
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