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The following error message is displayed when trying to start ArcMap or ArcCatalog:
"ArcView is not registered for use. To register, click on Start > Programs > ArcGIS > Desktop Administrator to start the Registration Wizard."
In some cases, the Desktop Administrator states ArcView is registered but starting ArcMap or ArcCatalog still causes the above error to be displayed.
In the case of international installs that require the use of a hardware key, the ArcView or ArcEditor registration file is for version 9.1, but at the time of the registration, the wrong hardware key number was entered.
If a hardware key is not required and the Desktop Administrator says the software is not registered, then the software has not yet been registered.
For those not required to use a hardware key to register ArcView or ArcEditor single use, register the software by navigating to Start > Programs > ArcGIS > Desktop Administrator to start the Registration Wizard.
If registering with a hardware key and an authorization file, make sure the AV_KEY number matches the hardware key number.
Another method to resolve this issue for those requiring a hardware key is to reregister ArcView through the Desktop Administrator.