INT 21 - Novell NetWare - FILE SERVER - DISABLE FILE SERVER LOGIN               
	AH = E3h subfn CBh
	DS:SI -> request buffer (see #02013)
	ES:DI -> reply buffer (see #02014)
Return: AL = status (00h,C6h) (see #02002)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CCh,AH=E3h/SF=D3h,AX=F217h/SF=CBh


Format of NetWare "Disable File Server Login" request buffer:
Offset	Size	Description	(Table 02013)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CBh (subfunction "Disable File Server Login")
SeeAlso: #02014,#02015


Format of NetWare reply buffer:
Offset	Size	Description	(Table 02014)
 00h	WORD	(call) 0000h (no results returned)
SeeAlso: #02012,#02013,#02015