INT 15 - DESQview v2.50+ - "DISPATCHINTAFTERDOS" - INTERRUPT ANOTHER TASK
        AX = DE2Ah
        BX = segment of handle for task to interrupt or 0000h for caller
        DX:CX -> interrupt routine
        BP,SI,DI,DS,ES as required by interrupt routine
Return: nothing
Notes:  DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
        this call is the same as AX=DE20h except that it will delay
          interrupting the specified task until after it has exited DOS
SeeAlso: AX=DE20h