Index: pqcomm.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/libpq/pqcomm.c,v
retrieving revision 1.184
diff -c -r1.184 pqcomm.c
*** pqcomm.c	5 Mar 2006 15:58:27 -0000	1.184
--- pqcomm.c	27 Jun 2006 15:17:18 -0000
***************
*** 593,598 ****
--- 593,608 ----
  			return STATUS_ERROR;
  		}
  
+ #ifdef WIN32
+ 		on = PQ_BUFFER_SIZE * 2;
+ 		if (setsockopt(port->sock, SOL_SOCKET, SO_SNDBUF,
+ 					   (char *) &on, sizeof(on)) < 0)
+ 		{
+ 			elog(LOG, "setsockopt(SO_SNDBUF) failed: %m");
+ 			return STATUS_ERROR;
+ 		}
+ #endif
+ 
  		/*
  		 * Also apply the current keepalive parameters.  If we fail to set a
  		 * parameter, don't error out, because these aren't universally