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When you try to start the Async service in Microsoft Dynamics CRM 4.0, you receive the following error message:
Exception while starting async service: MSCRMAsyncService - System.InvalidOperationException: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly.
Therefore, you cannot log on to Microsoft Dynamics CRM 4.0.
This problem occurs because a performance counter is corrupted. The performance counter may be a Microsoft Dynamics CRM performance counter or a Windows performance counter.
This problem is fixed in the latest cumulative update rollup for Microsoft Dynamics CRM 4.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
949256 Microsoft Dynamics CRM 4.0 updates and hotfixes
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
For more information about Microsoft Dynamics CRM software hotfix and update package terminology, click the following article number to view the article in the Microsoft Knowledge Base:
887283 Microsoft Business Solutions CRM software hotfix and update package naming standards