Disable Nagle Algorithmus with TCP_NODELAY on WinCE6

Hi,

I want to disable the Nagle algorithm for small data packets, but
setting TCP_NODELAY has no effect.
SOCKET s = socket (AF_BT, SOCK_STREAM, BTHPROTO_RFCOMM);
....
connect (s, (SOCKADDR *)&sa, sizeof(sa));
....
int nNoDelay = 1;
if(0 != setsockopt(s,IPPROTO_TCP,TCP_NODELAY,(char *)
&nNoDelay,sizeof(nNoDelay)))
wprintf (L"Nagle for Socket not set\n");

Has anybody the same effect or a solution for that?

Regards
Ebi
.