You experience the following symptoms on a computer that is running Microsoft Antigen 9.0 for Exchange or Microsoft Antigen 9.0 for SMTP Gateways:

• The Antigen Service randomly exits.
• The following event is logged in the System log:

  Event Type: Error
  Event Source: Service Control Manager
  Event Category: None
  Event ID: 7031
  Date: date
  Time: time
  User: N/A
  Computer: ServerName
  Description: The AntigenService service terminated unexpectedly. It has done this 2 time(s). The following corrective action will be taken in 0 milliseconds: No action.

This problem may occur if objects in the Active Directory directory service have very long names. When the Antigen Service creates an LDAP path, the Antigen Service uses a fixed size buffer to store the path information. If you use long names in Active Directory, the size of the LDAP path that the Antigen Service creates may be larger than can be copied to the buffer successfully. Therefore, the Antigen Service exits.

Hotfix information

Antigen 9.0 for Exchange

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

There are no prerequisites for installing this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Antigen 9.0 for SMTP Gateways

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

There are no prerequisites for installing this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

After you apply this hotfix, the maximum path size that the Antigen Service uses is increased by four times. This is to help reduce the probability that you experience the problem that is described in the "Symptoms" section when you use long names in Active Directory. Also, this hotfix adds validation checks to help make sure that a long LDAP path does cause the Antigen Service to exit. Instead, an error is logged. For more information about the terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: