🚀 go-pugleaf

Has anyone managed to set up a named pipe from a DOS app (client) running in
a DOS box to a Win32 app (OS is XP Pro)?  I can get the DOS app to open the
pipe (because it returns from ConnectNamedPipe() at the server) but it
immediately fails with an access denied error.  I have tried to open up the
server pipe to anyone:

SECURITY_ATTRIBUTES SecurityAttributes ;
SECURITY_DESCRIPTOR SecurityDescriptor ;

    InitializeSecurityDescriptor( &SecurityDescriptor,
SECURITY_DESCRIPTOR_REVISION ) ;
    SetSecurityDescriptorDacl( &SecurityDescriptor, TRUE, NULL, FALSE ) ;
    SecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES) ;
    SecurityAttributes.bInheritHandle = FALSE ;
    SecurityAttributes.lpSecurityDescriptor = &SecurityDescriptor ;

     hPipe = CreateNamedPipe( cName, PIPE_ACCESS_INBOUND,
        PIPE_TYPE_BYTE | PIPE_WAIT, 1, 0, 0, nInbufSize,
&SecurityAttributes ) ;

Is there anything more I can do, or is it a non-starter?

Many thanks,

Denville
Leeds, England.