Out-of-Process DLL

[MarcelDijk]

Dear COM programmers, I hope somebody can give me some thoughts about a problem I have. I am a complete newbie at COM programming and desperately trying to write a DLL library for a simulation program I am using. The simulation program allows me to write a DLL library with user defined functions. Now my plan is to write a general DLL library, which calls MATLAB to do the actual work. I am already using the MATLAB engine to let my DLL(simulation program) call user defined functions in MATLAB. But, I also need MATLAB to call functions in my DLL, from within the user defined functions written in MATLAB. For this I wanted to setup an out-of-process server within my DLL library. I succeeded at writing an out-of-process server in a normal EXE application and I could let MATLAB call functions and transfer data to my EXE application. But my real question is how to write an out-of-process server in a DLL? Is it at all possible, because usually DLL’s are in-process-servers? Kind regards, Marcel Dijkstra

[Gizzo]

Hi I think there was the option to write a COM-DLL and instead of load it into the client, you have the option to configure it just to be loaded as a surrogate, in a system proccess. Have a look in the COM section, in COM Architecture. One of these articles explain how to configure the registry (i'm not sure about this, just trying to remember). Regards.

[MarcelDijk]

Hi Gizzo, DLL surrogate is the thing I was looking for. I looked at the COM Architecture section and found articles on MSDN. I think this will keep me busy for some time. Thanks, Marcel