A mailbox store in a recovery storage group cannot be dismounted, and the Microsoft Exchange Information Store service cannot be shut down on an Exchange 2003 server

When you try to use the Microsoft Exchange Server 2003 Recover Mailbox Data feature to restore an Exchange 2003 mailbox from a recovery storage group, you experience the following symptoms:

• The mailbox cannot be restored.
• The mailbox store cannot be dismounted in the recovery storage group.
• The Microsoft Exchange Information Store service cannot be shut down.

Hotfix information

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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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

Microsoft Exchange Server 2003 Service Pack 2 (SP2) must be installed before you apply this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, the following services are automatically restarted when you apply this hotfix:

• The Microsoft Exchange Information Store service
• The Internet Information Services (IIS) Admin Service
• The World Wide Web Publishing Service
• The Simple Mail Transfer Protocol (SMTP) service
• The Microsoft Exchange Routing Engine service
• The Microsoft Exchange POP3 service
• The Network News Transfer Protocol (NNTP) service
• The HTTP SSL service
• The Microsoft Search service

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.