Does OPC use DCOM?

Does OPC use DCOM?

OPC clients and servers use COM to communicate with each other over the same machine and use DCOM to communicate directly with each other across a network.

How do I set up DCOM?

To manually enable (or disable) DCOM for a computer

  1. Run Dcomcnfg.exe.
  2. Choose the Default Properties tab.
  3. Select (or clear) the Enable Distributed COMÂ on this Computer check box.
  4. If you will be setting more properties for the computer, click the Apply button to enable (or disable) DCOM.

How do I check my DCOM settings?

Click on the Windows Start button, and select Run and then type “dcomcnfg” to open the DCOM configuration dialog box.

How do I increase my DCOM authentication level?

In this article

  1. Right-click the COM+ application for which you are setting authentication, and then click Properties.
  2. In the application properties dialog box, click the Security tab.
  3. In the Authentication level for calls box, select the appropriate level.
  4. Click OK.