CF2018 with Outlook

Hello, 

I want to connect CF2018 with the Outlook installed on my CF server, because i want to save the send email as an .MSG file. But i get following error on init the object.

<cfobject type=".NET" name="objOutlook" class="Microsoft.Office.Interop.Outlook">

Class Microsoft.Office.Interop.Outlook not found in the specified assembly list.
The assembly that contains the class must be provided to the assembly attribute.

Any help? thx