Int 61 Fn 0004  - Banyan Vines - Test Drive Connection                     [N]

   AX = 0004h subfn 0006h
   DS:DX -> request block (see #3078)

Return: AX = status (see also #3071)
       0000h connection flag returned in request block
Desc:  Returns a flag indicating if the drive is connected to a file service

See Also: AX=0004h/SF=0007h

Format of VINES Function 0004h/Subfunction 0006h request block:
Offset Size    Description (Table 3078)
 00h   WORD    0006h (subfunction "Test Drive Connection")
 02h   BYTE    buffer for connection flag (1 = not connected, 2 = connected)