From: dallas@texas.usa   
      
   On 9/5/2022 2:13 PM, MikeS wrote:   
   > On 05/09/2022 20:02, MikeS wrote:   
   >> On 05/09/2022 18:01, Terry Pinnell wrote:   
   >>> I have a program that sets alarms, and as well as displaying a message   
   >>> at the set date/time it is capable of playing a sound track (.WAV   
   >>> file).   
   >>>   
   >>> But that sound only plays if my speakers are switched on.   
   >>>   
   >>> Is there a command prompt or batch file that will 'beep' the internal   
   >>> 'sounder'? There always was one that got activated to tell you of a   
   >>> serious fault when failing to boot-up, so I'm hoping that still exists   
   >>> in modern PCs?   
   >>>   
   >> It still exists at least on most desktop motherboards but you need very low   
   level programming to   
   >> access it. Long ago Microsoft or somebody wrote a beeper driver (probably   
   using interupts) for   
   >> that purpose but it needed "real" MSDOS to obtain direct access to the   
   hardware. I doubt you can   
   >> do that with a command prompt or MSDOS emulator running under modern   
   Windows because you are too   
   >> isolated from the hardware.   
   >   
   > This may be the driver I remembered:   
   > https://www.driverguide.com/driver/detail.php?driverid=34380   
      
   We do take for granted that our PC will have a sound card these days.   
      
   I remember pretty clearly installing a BEEP.EXE program on a MSDOS system on a   
   desktop that did not   
   have a sound card.  And then wiring in a potentiometer on a knob to adjust the   
   volume of the   
   internal speaker (beeper).   
      
   That was a long long time ago.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)