The Microsoft Exchange MAPI subsystem is not installed on this system error when installing Microsoft Dynamics CRM E-mail Router

This article provides a resolution for the issue that you can't install Microsoft Dynamics CRM E-mail Router due to an error occurs.

Applies to:   Microsoft Dynamics CRM 2011
Original KB number:   951401

Symptoms

When you try to install Microsoft Dynamics CRM E-mail Router, you receive the following error message:

The Microsoft Exchange MAPI subsystem is not installed on this system.

Cause

This problem occurs because the following components are not installed:

  • The Messaging API (MAPI) client libraries
  • Collaboration Data Objects (CDO) 1.2.1

Resolution

To resolve this problem, install the MAPI client libraries and CDO 1.2.1.