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ERROR: A form region cannot be opened

Have a support question regarding ClearContext for Microsoft Outlook? Find help here. Be sure to include what version of Outlook and Windows you are using.

Moderator: ClearContext Support

ERROR: A form region cannot be opened

Postby ClearContext Support » Fri Sep 17, 2010 11:27 am

If you receive the following:

xml_form_error.png (7.64 KiB) Viewed 9484 times

A form region cannot be opened. The form region manifest contains invalid XML.

Option 1
Uninstall ClearContext via Windows Control Panel > Programs. Reinstall v5.2.1 or later.

Option 2
Turn off "Show add-in user interface errors" in Outlook:
show_errors.png (4.65 KiB) Viewed 9484 times

In Outlook 2010, this is accessed via Files > Options > Advanced. In Outlook 2007, go to Tools > Options > Other > Advanced.

Note that you will no longer see MessageContext in open items.

Option 3
If you are a developer and need to leave the above enabled, try removing your RelatedView registry keys. You will likely need to reapply this patch after each upgrade.
ClearContext Support
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