Home Features
& Benefits What Is OPC Free Demo Purchasing Sample Code 
 & Support

DCOM Configuration Tutorial
OPC Server Computer Recommended Settings
DCOM Tutorial Home

This section is intended to provide general guidance on proper DCOM Config utility settings for the computer on which your OPC server(s) are running.  Please note that depending on whose OPC server you are running and how you intend to run your system (user logged in or not, OPC server as a service or not, etc), these settings may vary.  Software Toolbox is able to provide extensive assistance with settings for OPC servers that are purchased from us (list of servers) and limited assistance with OPC servers that are not bought from us, provided that you are using one of our client applications such as the OPC Data ActiveX control.  If you are not using any of our products, then we are not able to provide free technical assistance.

By far, the settings on the OPC server computer are many more than on the OPC client computer.  This document is probably the longest one in the tutorial on how to properly setup DCOM.

If you are not already familiar with the DCOM Config utility and how to launch it, please review the DCOM Config Utility Introduction.  If you are familiar, please launch the DCOM Config utility on the computer where your target OPC Server is running if you intend to setup your machine with these instructions.

There are 3 areas you will need to setup - please do them all before moving to the OPC client setup.

  • Step 1: Default DCOM Configuration for the OPC server computer
  • Step 2: OPC Server specific settings for your OPC server
  • Step 3: Settings for OPCEnum, the tool that lets remote clients browse for available OPC servers on the machine where your OPC servers are installed.  If you will NOT be letting remote OPC clients browse for available servers, then you can skip this step.

Warning: contents of this tutorial are Copyright Software Toolbox, Inc. 2001-2002, and may not be reproduced in electronic or written form without written permission of Software Toolbox Inc.  Anyone found copying copyrighted material from this site for use on another site will be prosecuted. You are welcome to link to this site from your site. The information in this article is accurate to the best of our professional judgement at the time of writing but is subject to change.

Copyright Software Toolbox, Inc., 1996-2002, All Rights Reserved Worldwide.
148A East Charles Street, Matthews, North Carolina, USA 28105
Phone: 704-849-2773 or 1-888-665-3678 (US), Fax: 704-849-6388
Business hours - Monday to Friday, 8 AM to 5 PM EST (GMT-5)