Error messages when you create a new MAPI form or you try to open custom forms in Outlook 2003

The following symptoms may occur in Microsoft Office Outlook 2003.

Symptom 1
When you try to create a new MAPI form in Outlook 2003, you receive the following error message: Symptom 2
When you try to open a custom form from a published location such as Organizational Form Library, you receive the following error message:Symptom 3
When you try to open a received custom form e-mail item, you receive the following error message:

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Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

To fix these issues, enable MAPI forms. To do this, follow these steps.

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
   HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Forms\
3. Double-click the EnableMapiForms registry entry, type 1 in the Value data text box, and then click OK.
   
   Note If this registry path does not exist, create a new dWord-Value registry entry, name it EnableMapiForms, and give it the value of 1.