You may receive a "Run-time error '13': Type mismatch" error message when you try to programmatically open an encrypted e-mail message in Outlook 2003 (896594)


The information in this article applies to:

  • Microsoft Office Outlook 2003
Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry

SYMPTOMS

When you programmatically use the Microsoft Outlook object model to open an encrypted e-mail message in Microsoft Office Outlook 2003, the e-mail message does not open. Additionally, you may receive the following error message:
Run-time error '13': Type mismatch

RESOLUTION

This problem was first fixed in a hotfix that is now contained in a service pack. If you installed the latest Office 2003 service pack, you do not have to install the hotfix.

Service pack information

This problem is corrected in Office 2003 Service Pack 2.

To resolve this problem, obtain the latest service pack for Office 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

870924 How to obtain the latest service pack for Office 2003



After you install the service pack, follow the steps that are listed in the "More Information" section of this article to set the AllowOMWithUI registry key and to activate the hotfix.

Hotfix information

How to obtain the hotfix

This issue is fixed in the Outlook 2003 post-Service Pack 1 Hotfix Package that is dated March 28, 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

896261 Description of the Outlook 2003 post-Service Pack 1 hotfix package: March 28, 2005

After you install this hotfix, follow the steps that are listed in the "More Information" section of this article to set the AllowOMWithUI registry key and to activate the hotfix..

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Office 2003 Service Pack 2.

MORE INFORMATION

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.
To activate this hotfix, follow these steps:
  1. Quit Outlook 2003.
  2. Click Start, click Run, type regedit, and then click OK.
  3. Locate and then click to select the following registry key:

    HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Security

  4. After you select the key that is specified in step 3, point to New on the Edit menu, and then click DWORD Value.
  5. Type AllowOMWithUI, and then press ENTER.
  6. Right-click AllowOMWithUI, and then click Modify.
  7. In the Value data box, type 1, and then click OK.
  8. On the File menu, click Exit to quit Registry Editor.
Modification Type:MajorLast Reviewed:4/7/2006
Keywords:kbQFE KBHotfixServer kbOffice2003SP2fix KbVBA kbProgramming kbAutomation kbemail kberrmsg kbOffice2003preSP2fix kbbug kbfix KB896594 kbAudITPRO kbAudEndUser
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