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While installing ArcGIS 8.x products, the following error occurs:
Error: Configuration data for this product is corrupt.
This error is caused by conflicting entries in the registry.
Use a Windows Installer logfile and the registry editor to locate and remove the conflicting registry entries.
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.
Note: If the Installer key does not exist, create it by right-clicking in the right pane and choosing New > Key. The name should be Installer.
The TEMP variable in this case is pointing at D:\temp. Look in this directory for a file called MSI*.tmp.
Note: The long alphanumeric string is the 'unique identifier' for the conflicting product.
Note: If the installation fails, inspect the new log file and repeat the process in steps 5-8 to remove all conflicting registry entries.
Warning: The steps outlined in this article involve enabling a logging feature for the Windows Installer. If left enabled, this feature will create logfiles for every installation operation done in the Windows Installer. It is recommended to disable this logging option after resolving this problem.