OL2000: Cannot Start Outlook After Reconfiguring Mail Support

ID: Q236054

The information in this article applies to:

Microsoft Outlook 2000

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

If you reconfigure mail support in Outlook when you restart Outlook you are prompted for the original installation media. If you do not have access, you are unable to start Outlook.

CAUSE

The mail support you selected requires additional files from the installation media and unless you have access, the files cannot be installed.

RESOLUTION

To reconfigure your mail support you must have your original installation media (CD or network share) available. If your original installation media is available, to reconfigure mail support, on the Tools menu, click Options, and under the Mail Services tab, click Reconfigure Mail Support.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

If your original installation media is unavailable, you can revert to your previous mail configuration by using the following steps:

Click Start, and click Run.

In the Open box, type regedit, and click OK.

Navigate to the following subkey:

HKEY_LOCAL_MACHINE\Software\Microsoft\Office\9.0\Outlook\Setup

Click to select the MailSupport value. On the Edit menu, click Modify, Use the following table to select the data value to enter, depending on the type of mail support you want to return to, and then click OK.


Installation type         MailSupport value
-------------------------------------------
Internet Mail Only       0
Corporate or Workgroup   1
No Mail                  2

On the Registry menu, click Exit.

When you start Outlook, it will return to the previously used mail configuration.

Additional query words: OL2K cw imo mode

Keywords : kbdta
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbprb