quite late for responce...but if you are still interested in DCOM connector - it is part of the SAPGui 6.10 or 6.20. You should be able to install RFCSDK (DCOM connector is part of it) feature for both of these SAPGui. Packages are located in the folder:
In SAPGui 6.10 there is an explicit sub-folder "DCOMConnectorSetup" which installs DCOM connector integrated in MTC.
Ivaylo Mutafchiev (currently dealing with DCOM Connector )
Senior SAP Abap Consultant
how are you doing ?
As Reiner mentioned earlier, the DCOM connector was replaced for .net technologies by the SAP .NET Connector
is there any specific requirement that you need it for ?
as it is a long unused technology, it's knowledge base to help will be limited and even when you get it, making it work will be up to your own skills, and you will lack support from the community.
if you would like we could come up with an alternative to suit your requirement