> AC> Having spent quite a while figuring out how to do vertical
 > AC> scrolling when porting Msged to Windows NT, I've got
 > AC> terribly experienced in this pasttime all of a sudden.  :-)
 > Someone told me that NT does not allow direct writes to anything, without
 > it's permission is that true ?

_inp() and _outp() in NT will give you a priveged-instruction exception
message. If you attempt port I/O from a 16-bit DOS app in an NT console
window, the I/O is either ignored or emulated by NT's virtual device
drivers.

With unrestricted access, an application could turn off all interrupts,
take over the system and trash it. Too risky.

Rob
--- FMail 0.94