Advosol HDA server instances and DCOM

[Runar]

In Advosol's FAQ #14 about OPC DA server instances they say that in order to avoid multiple instances of an OPC DA server one should specify the DCOM Indentity to be a specific user.

My question is regarding an OPC HDA server which was developed using Advosol OPC HDA server toolkit Standard edition. Our server has multiple HDANSrv.exe processes running on the server when multiple clients connect or one clients connects and disconnects multiple times.

We have entered a DCOM Indetity-user for the HDA DCOM service but don't see the same behaviour as in the DA server which runs as one single process after the DCOM fix.

Is there a similar way of making the HDA server run as only one process?