Named Pipes, instance busy error

Hi gurus.

i'm trying to use a named pipe instead of a file in a c# app:
the c# app is expected to act as a client. and i have a c++ app running as server.

the c# app original expected a file name to read data, which was currently replaced by a pipe as in

Code:

---

FilterGraph = new FilgraphManager();
                try
                {
                    m_FilterGraph .RenderFile( PIPE_NAME );
                }

---

(this is a directshow app to play back avi file, do you expect this to work ?)

This function throws "all pipe instances are busy".
Is there any workarounds, help..

thanks in advance

I think you shall use NamedPipeClientStream created over the PIPE_NAME, but I don't know how to pass it to RenderFile.

Ok thanks, i'l have a look at it, and possibly return ;)