Provider “%1” has invalid attribute – “%2”. The entry is not added to the table.

Product: Exchange
Event ID: 1113
Source: MSExchange Autodiscover
Version: 8.0
Symbolic Name: WarnCoreProviderAttributeException
Message: Provider “%1” has invalid attribute – “%2”. The entry is not added to the table.

This Warning event indicates that an invalid attribute was registered by the provider DLL with the Microsoft® Exchange Autodiscover service on the Exchange Client Access server. When a provider registers with the Autodiscover service, the provider must declare certain attributes such as a GUID, request schema, and response schema. If the provider file has specified an invalid attribute to the Autodiscover service, the event is logged.

GUIDs identify objects such as interfaces, manager entry-point vectors (EPVs), and class objects. A GUID is a 128-bit value that consists of one group of 8 hexadecimal digits, followed by three groups of 4 hexadecimal digits each, and followed by one group of 12 hexadecimal digits. The following sample GUID shows the groupings of hexadecimal digits in a GUID: 6B29FC40-CA47-1067-B31D-00DD010662DA.

User Action

To resolve this warning, take one or more of the following steps:

  • Look at the Application log for a detailed description of the event.

  • Contact Microsoft Product Support Services for a provider DLL with valid attributes. For information about how to contact support, visit the Microsoft Help and Support Web site.

For more information about the Autodiscover service, see Managing Autodiscover.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.


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