OPC/COM activation

The Communication Driver runs only out-of-process (that is, as a stand-alone process).

If a client uses the CLSCTX_ALL value in an activation call (e.g., CoCreateInstance) to activate the Communication Driver, out-of-process activation is triggered. Explicitly starting the Communication Driver in-process (that is, as a part of the client process) is not supported.

Using the CLSCTX_ACTIVATE _64_BIT_SERVER value in an activation call is also not supported.