How to remove a typical installation of Microsoft Operations Manager 2000 (298481)

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Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Note The following NetIQ products use some of the same registry keys as MOM uses. If one or more of these products are installed on your computer and if you delete the registry keys as described in the following the steps, these products will no longer function correctly.

• Security Manager 5.0 and earlier versions
• Directory Resource Administrator, all versions
• File Security Administrator, all versions
• Directory Security Administrator, all versions
• Exchange Administrator, all versions

The term "typical installation" implies that all of the MOM components (DCAM, Database, Reporting, Web Console, Agent Manager, and Consolidator) are installed on a single computer and that Microsoft SQL Server is being used to host the database.

To completely remove a typical installation of MOM:

1. Remove all MOM agents (except for the agent on the DCAM; it will be removed when the MOM site is removed).
   
   To remove all agents from computers in the Managed Computers list of an Agent Manager:
   1. Start the MOM console, expand Microsoft Operations Manager (default), and then expand Configuration.
   2. Click Agent Managers.
   3. In the right pane, click an Agent Manager that has agents that you want to remove.
   4. Click Action on the menu bar, and then click Modify Managed Computer Rules on the Action menu.
   5. For each rule on the Managed Computer Rules tab, click the rule, click Delete, and then click OK.
      
      Note that if you do not delete the Managed Computer rules, the agents that you remove are reinstalled when the next Managed Computer scan runs.
   6. In the right pane, click the Agent Manager that has the agents that you want to remove.
   7. Click Action on the menu bar, and then click All Tasks on the Action menu.
   8. Click Uninstall Managed Agents.
   9. Repeat steps b. through h. for every Agent Manager to remove all agents from all Agent Managers in the configuration group.
      
      Wait until Agent Manager has had time to remove all agents before you proceed to the next step. The Managed Computer tab under Agent Manager Properties shows you the installation state of each managed computer.
      
      If Agent Manager does not successfully remove all MOM agents, refer to the following article for information about how to manually remove a MOM agent:

      298380 How to manually remove an agent from an agent computer

2. Start Registry Editor (Regedt32), and then locate the following registry key:

   HKEY_LOCAL_MACHINE\SOFTWARE\Mission Critical Software\OnePoint\

3. Write down the directory paths from the following three registry values, and then quit Registry Editor:
   • DataDir
   • MSInstallSubDir
   • TempDir
4. Use the Add/Remove Programs tool in Control Panel to remove MOM.
5. If necessary, start a command prompt and use the Windows 2000 Resource Kit utility sc.exe to delete the OnePoint Service. Use the following syntax:

   sc /delete onepoint

6. Start Registry Editor (Regedt32), and then locate and delete the following registry keys if they are present:

   HKEY_LOCAL_MACHINE\Software\Mission Critical Software\OnePoint

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\OnePoint

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Operations Management

   Quit Registry Editor.
7. In SQL Enterprise Manager, browse to the OnePoint database, and then delete the OnePoint database.
   
   Note As an alternative to deletion, you can detach the OnePoint database. Use SQL Query Analyzer to run the following query, with the Master database selected:

   sp_detach_db 'OnePoint'

8. In Windows Explorer, use the directory paths that you wrote down for the DataDir, MSInstallSubDir, and TempDir registry values in Step 2 to locate and then delete the three folders where the program is installed. However, do not delete the folder that is listed under the TempDir registry value. Instead, delete the Mission Critical Software folder that is in this temp directory.
   
   It may be necessary to stop the SMTP, WWW, and IIS Admin services in order to delete the Reports folder under Events.
9. In Control Panel, under Administrative Tools, click Computer Management, and then delete the OnePointOp user groups.
10. Click Start on the taskbar, point to Programs, point to Administrative Tools, and then click the Component Services MMC.
11. In Microsoft Management Console, expand Component Services, expand Computers, expand My Computer, and then click COM+ Applications.
12. Delete the MOMDasLocator and OnePointActiveOpsDas programs if they are present.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.