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Event ID 89 — AD CS Program Resource Availability

Updated: November 27, 2007

Applies To: Windows Server 2008


Certification authorities (CAs) need adequate system resources and operating system components to function. If a server has insufficient memory or hard disk space, or if operating system components become unavailable, attempts to start Active Directory Certificate Services (AD CS) can fail.

Event Details

Product: Windows Operating System
ID: 89
Source: Microsoft-Windows-CertificationAuthority
Version: 6.0
Message: Active Directory Certificate Services detected an exception during startup at address %1. The exception is %2.


Correct general problems that prevent Active Directory Certificate Services from starting

To perform these procedures, you must have Manage CA permission, or you must have been delegated the appropriate authority.

Fix general problems that can prevent Active Directory Certificate Services from starting

To fix general problems that can prevent Active Directory Certificate Services (AD CS) from starting:

  1. On the computer hosting the CA, click Start, point to Administrative Tools, and click Services.
  2. Check the status of the AD CS service. If the service is not running, attempt to restart it and observe if the error recurs or if other errors or warnings appear.
  3. Restart the computer and try steps 1 and 2 again.
  4. Check the event log message for a code that describes the specific reason that startup failed. If not, check the event log for additional errors and warnings preceding or following this error message and correct these errors.
  5. If the problem persists and can reproduce the issue, use the following procedure, Create a CA debug log,  to obtain additional information.

Create a CA debug log

To create a CA debug log:

  1. On the computer hosting the CA, click Start, type cmd and press ENTER.
  2. Type certutil -setreg ca\debug 0xffffffe3 and press ENTER. 
  3. Use the Certification Authority snap-in to restart the CA.
  4. Reproduce the issue.
  5. If the problem persists, contact Microsoft Customer Service and Support.

The %windir%\certsrv.log file contains advanced diagnostic information that may be useful if you need to contact Microsoft Customer Service and Support.


To perform this procedure, you must have membership in local Administrators on the computer hosting the certification authority (CA), or you must have been delegated the appropriate authority.

To confirm that the CA service is available:

  1. On the computer hosting the CA, click Start, type cmd and press ENTER.
  2. Type certutil -config <CAconfig> -ping and press ENTER.

    CAconfig is the CA configuration string, in the form CAhostname\CAname.

Related Management Information

AD CS Program Resource Availability

Active Directory Certificate Services

Community Additions

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