Int 61 Fn 0004  - Banyan Vines - Set Unidentified Internal Flag            [N]

   AX = 0004h subfn 0018h
   DS:DX -> request block (see #3096)

Return: AX = status
       0000h success
Desc:  Sets an unidentified BYTE variable in the redirector data segment to 1.

Note:  In the VINES 5.53 "REDIR4" redirector, this variable is located at
     DS:0B53.

Format of request block:
Offset Size    Description (Table 3096)
 00h   WORD    0018h

See Also: #3097