From: MikeS@fred.com   
      
   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.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)