INT 21 - Novell NetWare - PRINT SERVICES - SET BANNER USER NAME                 
	AX = B809h
	ES:BX -> 12-byte buffer containing user name
Return: AL = status
	    00h successful
Desc:	specify the user name which is printed on the banner page
Notes:	this function is supported by Advanced NetWare 2.1+
	the default name is the login name of the user
SeeAlso: AX=B808h