Int 2F Fn DB06  U - Wingo.com - Call Callback Function                     [U]

   AX = DB06h

Return: AX = return value of INT 2F/AX=1685h

Note:  uses Windows service INT 2F/AX=1685h (SWITCH VMs AND CALLBACK) to
     call the callback function previously set by AX=DB01h
   used for WINGO <-> WINSTART communication

See Also: AX=1685h, AX=DB00h"WINGO",AX=DB01h"WINGO",AX=DB02h"WINGO",

See Also: AX=DB03h"WINGO",AX=DB04h"WINGO",AX=DB05h"WINGO"