Consider the following scenario:

• You install Microsoft SQL Server 2005 Management Objects Collection.
  
  Note SQL Server 2005 Management Objects Collection is available from the following Microsoft Web site:
  
  http://www.microsoft.com/downloads/details.aspx?FamilyID=536fd7d5-013f-49bc-9fc7-77dede4bb075&DisplayLang=en (http://www.microsoft.com/downloads/details.aspx?FamilyID=536fd7d5-013f-49bc-9fc7-77dede4bb075&DisplayLang=en)
• After you install SQL Server 2005 Management Objects Collection, the Microsoft.SqlServer.Smo assembly was added to the Global Assembly Cache (GAC). Additionally, the following registry key will be added to the registry:
  
  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\XMO
• You install the SQL Server 2008 Reporting Services Add-in for Microsoft SharePoint on the computer.
  
  Note The SQL Server 2008 Reporting Services Add-in for Microsoft SharePoint is available from the following Microsoft Web site:
  
  http://www.microsoft.com/downloads/details.aspx?FamilyID=200fd7b5-db7c-4b8c-a7dc-5efee6e19005&DisplayLang=en (http://www.microsoft.com/downloads/details.aspx?FamilyID=200fd7b5-db7c-4b8c-a7dc-5efee6e19005&DisplayLang=en)

In this scenario, the Microsoft.SqlServer.Smo assembly may be missing in the GAC and the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\XMO registry key is removed.

SQL Server 2005 Service Pack 2 (SP2)

Important You must use this fix if you are running SQL Server 2005 Service Pack 2 (SP2).

The fix for this issue was first released in Cumulative Update 15 for SQL Server 2005 Service Pack 2. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2005 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft SQL Server 2005 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2005 Service Pack 2 hotfix to an installation of SQL Server 2005 Service Pack 2. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

You can also apply one of the following packages that are provided in Microsoft Knowledge Base (KB) article 972510 to fix this problem:

• SQL_Server_2005_SP2_Cumulative_Update_15_SNAC
• SQL_Server_2005_SP2_Cumulative_Update_15_SQLWriter
• SQL_Server_2005_SP2_Cumulative_Update_15_XMO

SQL Server 2005 Service Pack 3 (SP3)

Important You must use this fix if you are running SQL Server 2005 Service Pack 3 (SP3).

The fix for this issue was first released in Cumulative Update 5 for SQL Server 2005 Service Pack 3. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2005 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft SQL Server 2005 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2005 Service Pack 3 hotfix to an installation of SQL Server 2005 Service Pack 3. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

You can also apply one of the following packages that are provided in Microsoft Knowledge Base (KB) article 972511 to fix this problem:

• SQL_Server_2005_SP3_Cumulative_Update_5_RS_Sharepo
• SQL_Server_2005_SP3_Cumulative_Update_5_SNAC
• SQL_Server_2005_SP3_Cumulative_Update_5_SQLWriter
• SQL_Server_2005_SP3_Cumulative_Update_5_XMO

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

For more information about the list of builds that are available after SQL Server Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:For more information about how to obtain SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the new features and the improvements in SQL Server 2005 Service Pack 2, visit the following Microsoft Web site: For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
For more informationabout how to obtain SQL Server 2005 Service Pack 3, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the new features and improvements in SQL Server 2005 SP3, visit the following Microsoft Web site: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: