INT 21 - DOS 3.1+ internal - SHARE.EXE - CLOSE FILE BY NAME

	AX = 5D02h
	DS:DX -> DOS parameter list (see #01686), only fields DX, DS,
		  computer ID, and process ID used
	DPL's DS:DX -> ASCIZ name of file to close
Return: CF set on error
	    AX = error code (see #01680)
	CF clear if successful
Notes:	error unless SHARE is loaded (calls [SysFileTable-28h])
	  (see #01636 at AH=52h)
	name must be canonical fully-qualified, such as returned by AH=60h
	not supported by DR DOS 3.41 and 5.0; returns error code 01h
	not supported by Novell DOS 7, although in Update 15 it is reported
	  to no longer return an error code
SeeAlso: AX=5D03h,AX=5D04h,AH=3Eh,AH=60h