Int 21 Fn 3306  - Cbis Network - Network Redirector - ???                  [N]

   AX = 3306h

Return: AX = 3306h
   BL = ??? (usually 00h)
   BH = ??? (usually 00h or FFh)

Note:  unknown function, is in conflict with DOS 5+ version call

See Also: AX=3306h"DOS"