Windows XP Service Pack 2 (SP2) Support Advisory Center

DCOM for XP SP2 Setup Tutorial - Introduction This tutorial will soon also be incoporated into/included in our standard DCOM Tutorial downloadable help file that we include with most of our OPC products. The concepts in this tutorial can be applied to any OPC application using DCOM on a Windows XP system with XP2. The screenshots and setups shown are based on having our OPC Quick Client connect to our TOP Server on a remote PC. The information is all you should have to change to a system that was running using DCOM before installing XP SP2. If you are setting up a new system these settings can be the first ones made before following the rest of our standard DCOM tutorial. DCOM with XP SP2 requires two new steps. The first is the new Windows Firewall The second is Limits that can be set in DCOM security to overcome a weakness that would allow programs to set their own DCOM security limits regardless of what the user configured. Before you begin, you must have available: The names of all OPC client and OPC server applications you will be configuring on each PC. You need the "friendly name" - i.e. TOP Server is one of our OPC Servers You need the actual "executable name" - i.e. the executable for TOP server is named Servermain.exe Users of Software Toolbox products, Click for a list of applications, their filenames, and install locations. Clearly understand which PC has the OPC client portion of your application, and which PC has the OPC server portion of your application. All of this information would have been gathered in the impact assessment portion of your Best Practices analysis. Disclaimer: The information contained in these pages is based on our testing with the release candidate of XP Service Pack 2. Although this information is based on "best practices" as judged by the authors, Software Toolbox and the authors of this document assume no responsibility or direct, indirect, or consequential liability for its accuracy or suitability for a users particular application. The reader is responsible for proper application to their particular situation and for the decision to deploy Windows XP SP2 in their environment.

| Home | XPSP2_BestPractices | XPSP2_DCOMSetup | XPSP2_ProductStatus