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When attempting to install the ArcGIS Desktop Developer kit for ArcGIS 9, an error may occur, stating that a previous version is installed. The previous version may not show up in the Windows Add/Remove programs interface.
Residual registry entries exist for the older version of the developer kit.
Warning: The instructions below include making changes to essential parts of your operating system. It is recommended that you backup your operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary. Esri cannot guarantee results from incorrect modifications while following these instructions; therefore, use caution and proceed at your own risk.Remove the residual entries for ArcObjects Developer's Kit.