Bob/Kevin,
Using the soundcard for both speech and digital work can pose interesting
problems, especially when transmitting.  When you're transmitting you need
to ednsure that your screen reader won't start chattering at the same time
as you are sending a digital signal.  In this event, you'd be broadcasting
eloquence for the whole world to hear.  The safest approach would be to run
your screen reader through an external synth or have multiple soundcards in
your computer.

The com port is typically used to toggle the radio into transmit mode using
the ptt line.  Here again, if you're using jaws over the soundcard, yuou
definitely wouldn't want to use vox because this would send your rig into
transmit mode every time jaws said something.

I'll be interested in hearing how the accessible the program is.
Typically, digital software relies heavily on the use of onscreen tuning
aids for selecting signals to decode.  Perhaps digitalk has developed a
blind-friendly approach for this.  If so, it would be a major breakthrough
for us.

73
Chris w1gm