Frequently asked question

Does ArcGIS 9.0 need to be completely uninstalled before installing ArcGIS 9.1?

Last Published: April 25, 2020


Yes. Everything related to ArcGIS 9.0 (ArcGIS Desktop, ArcInfo Workstation, Desktop Developer Kit, Tutorial Data, Python, Crystal Reports and any third-party customizations, toolbars, etc.) must be uninstalled before installing ArcGIS 9.1.

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  • ArcMap 9 x

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