Int 15 Fn DE19  - Desqview V2.23+ - "getcommon" - Allocate "common" Memor  [Q]

   AX = DE19h
   BX = number of bytes to allocate

Return: AX = 0000h successful
       ES:DI -> allocated block
        nonzero insufficient memory

Note:  this API call may be made from within a hardware interrupt handler

See Also: AX=DE0Ch,AX=DE15h,AX=DE1Ah