Issues that may occur on a Microsoft Windows Small Business Server 2003-based computer after you remove an MSDE 2000 SP4 instance, a SQL Server 2000 Desktop Engine (Windows) SP4 instance, or a SQL Server 2000 SP4 instance (920899)

SYMPTOMS

Consider the following scenario. You remove a Microsoft SQL Server Desktop Engine (also known as MSDE 2000) Service Pack 4 (SP4) instance, a Microsoft SQL Server 2000 Desktop Engine (Windows) SP4 instance, or a Microsoft SQL Server 2000 SP4 instance on a Microsoft Small Business Server 2003-based computer. Then, all MSDE 2000 and SQL Server Desktop Engine (Windows) instances may stop responding on the computer.

In this scenario, you may experience one or more of the following symptoms:

• You cannot connect to the Microsoft Windows SharePoint Services companyweb Web site. Additionally, when you try to open the Web site, you receive the following error message:
  Cannot connect to the configuration database.
• In the Application log, you may also receive errors messages that resemble the following:
  Event Type: Error
  Event Source: Windows SharePoint Services 2.0
  Event Category: None
  Event ID: 1000
  Date: 1/11/2005
  Time: 5:34:37 PM
  User: N/A
  Computer: ServerName
  Description: #50070: Unable to connect to the database STS_Config on ServerName\SharePoint. Check the database connection information and make sure that the database server is running.
  Event Type: Error
  Event Source: Windows Server Update
  Event Category: Update Services Service
  Event ID: 421
  Date: 1/11/2005
  Time: 5:34:37 PM
  User: N/A
  Computer: ServerName
  Description: Connection to database failed. Reason=SQL Server does not exist or access denied. Connection string: Data Source=ServerName\WSUS;Initial Catalog=SUSDB;Connection Timeout=60;Application Name=WSUS SQL Connection;Trusted_Connection=Yes;Pooling='true';Max Pool Size=100
  Event Type: Error
  Event Source: Microsoft Firewall
  Event Category: Log
  Event ID: 7
  Date: 1/11/2005
  Time: 5:34:37 PM
  User: N/A
  Computer: ServerName
  The Microsoft Firewall was unable to open ADO connection. The MSDE Error description is: Invalid connection string attribute. [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied. For more information about this event, see ISA Server Help.
• The Windows Small Business Server 2003 Monitoring and Reporting MMC snap-in does not function as expected. Reports may not contain the expected information.
• If Microsoft Windows Server Update Services (WSUS) is installed as in Windows Small Business Server 2003 R2, the update functionality will stop working.
• If Microsoft Internet Security and Acceleration (ISA) Server 2004 is installed, client computers may be unable to access the Internet or any server resources. This includes both outgoing and incoming connections.
• Other programs that use an SQL database back end, such as Microsoft Small Business Accounting, may stop working.

Additionally, consider the following scenario. You perform one or more of the following tasks on a computer that is running WSUS such as Windows Small Business Server 2003 R2:

• You remove SQL Server Desktop Engine (Windows) SP4.
• You remove MSDE 2000 SP4.
• You install SQL Server 2000 SP4, and then you remove SQL Server 2000 SP4.

In this scenario, when you try to open WSUS or when you try to open Windows Small Business Server 2003 Update Services on a Windows Small Business Server 2003-based computer, you may receive the following error message: For more information about how to resolve this issue, click the following article number to view the article in the Microsoft Knowledge Base: