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Knowledgebase: Exchange Central
KB0234 - "Interface not supported" error when connecting to Outlook

 

Symptom

An error is encountered when assigning MAPIOBJECT to RDOSession object’s property, because of which Exchange Central (EC) cannot connect to Outlook to retrieve Outlook profile list when launching EC. This is also true in Options/Outlook Connection.

The issue can be seen in EC log:

Exception: Interface not supported; StackTrace: at Redemption.IRDOSession.set_MAPIOBJECT(Object Value)

 

Cause

Windows Fall Creators Update deleted some registry keys responsible for the MAPI objects’ marshalling.

 

Resolution

You can employ one of the following solutions:

  1. Reinstall Outlook (uninstall and install Outlook again)
  2. Use a .REG file (attached to this KB) to restore the missing MAPI entries.

 

Properties

Applies to: EC 5.0

Reference: TFS #166731

Knowledge base ID: 0234

Last updated: Apr 18, 2018


Attachments 
 
 Outlook_2013&2016_C2R_fix.zip (2.99 KB)