Hi I have a problem with following scenario:

There is a windows service running which spawns several processes. These processes open a WCF service host over a named pipe binding. Now the parent windows service tries to ping (connect) to the child processes using the wcf proxy over the well known named pipe. This, however fails saying: "Endpoint not found"

If I run the parent process as a console application it works fine.

Any ideas? I was thinking about permissions but the child processes should inherit the permission of the service, besides they are in the same session as well.

thanks, Christoph