Re: 9 bit communication on RS 232

<snip>
> I've used the parity bit successfully for a 9th bit, taking care to
> wait for the buffers to empty before changing the bit.  It was
> painfully slow, however, even with W2K and Delphi, so I guess the
> problem covers all windows forks.
>
> I have heard of a driver that is available (for quite a lot of money)
> that does this sort of switching at a lower level, and therefore does
> it faster, providing solid 9-bit communications in windows.

Comm-Drv from http://www.wcscnet.com/Software.htm