To restore Key Management Service, you must restore the Key Management Service database. Also, if certification authority (CA) was running on the server that experienced the disaster, you must also restore the CA.
If you are restoring the Key Management Service database as part of recovering a server running Exchange 2000, complete the necessary steps to restore or rebuild your server before you perform the following procedure. For example, if you are rebuilding an Exchange 2000 member server that is running Key Management Service, you must perform additional steps to recover both CA (if CA was running on the same server as Key Management Service) and the Key Management Service database after running Exchange 2000 Server Setup in Disaster Recovery mode.

For information about when to restore the Key Management Service database and the CA, see "Exchange 2000 Member Server Recovery Procedures" later in this chapter.
For information about how to back up Key Management Service, see "Backing Up Exchange 2000 Key Management Service".

This section contains the following restore information:

• Restoring the Certification Authority
• Restoring the Key Management Service database

The information in this article applies to:

• Microsoft Exchange Server 2003 Enterprise Edition
• Microsoft Exchange Server 2003 Standard Edition
• Microsoft Windows Small Business Server 2003, Premium Edition
• Microsoft Windows Small Business Server 2003, Standard Edition
• Microsoft Exchange 2000 Server