BIOS / Int / Int 15 / DE/0A


    INT 15 - DESQview  2.0  - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE

Input			Output
AX	DEh	0Ah		AX
BX		Character		BX
CX				CX
DX				DX
ES:DI				ES:DI

Note:   Displays character on bottom line of *physical* screen,
        regardless  of  current  size  of window (even entirely
        hidden)  does  not  know  about graphics display modes,
        just pokes the characters into display memory