After installing ArcGIS 8.x or 9.0 products, Microsoft Office 2000 applications no longer work. The Office applications will start, then close themselves without error.
During the installation of ArcGIS the setup wizard updates VBA (Visual Basic for Applications), which is also a component of Office; effectively updating this component of Office to SR1a. Particular copies of Microsoft Office are incompatible with SR1a and will exhibit this behavior when updated.
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