Configuring operating system settings

Each version of Windows has its own defaults for DCOM settings, which can change when you upgrade your operating system. Be sure to verify that the settings on your OPC server and client computers are configured properly, as described in this guide and by your OPC server vendor. When setting access permissions, do not remove any of the Windows default users or groups (such as Administrator), because they are necessary for proper functioning of DCOM.

To configure the OPC client node (and the OPC server node if so advised by your OPC server vendor), perform the following procedures.