Problems when Outlook and Exchange components (2003 and earlier) are installed on the same computer


When you install any Exchange Server 2003 (or earlier) components on the same computer as Microsoft Outlook, various problems can occur with Outlook or with other applications that use MAPI. This includes, but is not limited to the following symptoms:
  • No results are returned by a search in Outlook.
  • Error indicating there is no default e-mail client installed.
  • Crashes in Outlook.
  • Settings on the Voice Mail tab are disabled.
  • Third-party MAPI applications do not work.

Therefore, this configuration is not supported nor recommended. 


If you have Outlook installed on the same computer as Microsoft Exchange Server, you will want to use Outlook on a different computer.

If you have a workstation that is primarily used for Outlook but that also has Exchange management tools installed (for example, Exchange System Manager), you should perform the following steps to remove the Exchange management tools (assuming you want to keep Outlook installed on the computer):
  1. Uninstall the Exchange management components using Control Panel.
  2. Run the FixMapi.exe tool.
    • Windows 7 and Windows Vista
      1. Click Start.
      2. Type fixmapi in the Search programs and files box.
      3. In the results, click Fixmapi.exe.

        Note, there is no user-interface for the Fixmapi tool and there is no message indicating a result.
      4. Restart your computer.
    • Windows XP
      1. On the Start menu click Run.
      2. In the Open box, type the following command and then click OK.


        Note, there is no user-interface for the Fixmapi tool and there is no message indicating a result
      3. Restart your computer.

More Information

The following articles and resources provide additional details on this scenario.

266418 Microsoft does not support installing Exchange Server components and Outlook on the same computer

313889 Microsoft does not recommend installing Exchange Server 5.5 and Outlook 2000 or later on the same computer

Exchange and Outlook On The Same Machine

927676 No results are returned when you search for e-mail items after you enable Instant Search in Outlook

820865 You receive the "A recently installed program may cause Microsoft Office or other e-mail-enabled programs to function improperly" error message when you start Outlook

329136 "The information store could not be opened" error message occurs when you try to view client permissions in Exchange Server 2003 or Exchange 2000 Server


Article ID: 2715315 - Last Review: May 21, 2012 - Revision: 1

Microsoft Outlook 2010, Microsoft Office Outlook 2007, Microsoft Office Outlook 2003, Microsoft Exchange Server 2003 Enterprise Edition, Microsoft Exchange 2000 Enterprise Server