INT 61 - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP. kernel v2.05+ - "net_asynch" - SET UP ASYNCHRONOUS CALL-BACK
	AH = 1Fh
	BX = network descriptor
	CX = event type (see #03466)
	DS:SI -> event handler routine (see #03467)
	ES:DI = 32-bit hint passed to handler
Return: CF clear if successful
	    DS:DX -> previous handler
	CF set on error
	    AX = error code (see #03319 at INT 61"FTP(File Transfer Protocol)  The standard protocol for copying files from one machine to another on a TCP/IP (Internet) network.  Also the program of the same name with which a user may transfer files. Software")
Note:	ICMP messages do not trigger events on stream connections
SeeAlso: INT 61"FTP(File Transfer Protocol)  The standard protocol for copying files from one machine to another on a TCP/IP (Internet) network.  Also the program of the same name with which a user may transfer files. Software",INT 61/AH=00h"PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP."


(Table 03466)
Values for PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP. event type:
 00h	alarm
 01h	open (successfully opened stream connection)
 02h	receive (data available)
 03h	transmit (ACK received on stream connection)
 04h	transmit flush???
 05h	foreign close (remote host closed data connection)
 06h	close (local host closed connection and protocol is complete)
 07h	error (error code passed to handler as arg)


(Table 03467)
Values PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite.  See also IP, TCP/IP. user event handler is called with:
	BX = network descriptor
	CX = event type (see #03466)
	DS:DX -> arg
	ES:DI = 32-bit hint value
	STACK:	small stack, possibly the DOS stack