Use
You have already installed an SAP Exchange Connector on one of your computers and would now like to update this installation.
You cannot simply update to SAP Exchange Connector version 2.x from version 1.54! If you want to migrate to 2.x from 1.54, you must first set up an Exchange 2000 server onto which you then install the version 2.x connector.
Procedure
Result
The SAP Exchange Connector is updated.