Int 2F Fn DE0E  C - Desqview V2.26+ External Dev Interface - Dvp Start Fa  [Q]

   AX = DE0Eh
   BX = mapping context of DESQview system task
   DX = handle of DESQview system task
   SI = mapping context of failed process (same as for call to AX=DE0Bh)

Note:  driver should pass this call to previous handler after processing it