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Troubleshooting Exceptions: System.IdentityModel.Selectors.ServiceBusyException

A ServiceBusyException exception is thrown to indicate that the CardSpace service is busy processing other requests. CardSpace does not queue requests, and can service only one request at a time.

Determine whether another instance of CardSpace is running. If there is another instance running, end it by stopping the icardagt.exe process from Task Manager.

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