Jan,

>I created VFP multi-threaded COM server and I want use its from another machine. How I can correctly install COM server to another PC with reference to server dll?

To use MTDLL via DCOM on another computer, you must run it inside Microsoft Transaction Server (MTS) on the server computer.

>How to distribute its to users?

You will create a MTS package, which provides an install link for the client computers.