Outlook Web App couldn't initialize. Invalid forms registry file %1 Line number = %2 Position = %3. You must either define ...

Outlook Web App couldn't initialize.

Invalid forms registry file %1  Line number = %2  Position = %3. You must either define a base experience or a forms registry to inherit from.

The forms registry is a critical component of Outlook Web App. If this error isn't addressed, users might not be able to access Outlook Web App. The Help and Support Center provides information about troubleshooting the forms registry.

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