I need something what can recompute my win32 4-byte pointer to "real" address which is usuable for addressing a memory block for x86assembler int13h (you can find documentation in SYSMAN or another program) I tried register ebx, offset to bx and segment to es and everything else, but nothing works. (when i try to run it, winDO(w)S creates a bluescreen with error on some address and vxd problem) please help thanks