Windows 7 Win7 Windows Task Scheduler, when running silent, also suppresses sound

[MtheK]

I had found that, to not have my programs visible in the TaskBar
(ie: DSNTODAY), I must, in the General Tab, select 'run whether user
is logged on or not'. Unfortunately, tho logically, this also seems to
apply to sound (ie: the Win32API BEEP and MESSAGEBEEP). When I select
'run only when user is logged on', it works properly (my NOTIFY program,
which can beep if DSNTODAY finds an executable with todays' date; I use
Audio, then Visual, cues).

Is there a way to allow sound, even just a YES or NO, perhaps via a
Registry tweak? Otherwise, I start my program via Startup which, like
any typical program, appears in the TaskBar. I'd rather do that then
pop up a brief window every 5min w/WTS; plus, I get better granularity
(ie: I can run every minute). Can I hide my program in the TaskBar
even tho it's not part of SysTray (notification area)?

 

[MtheK]

It appears that running under the GUEST logonID also suppresses sounds, as my program works
properly (ie: audio beeps) ONLY when run under an ADMIN logonID!?

 

[MtheK]

Interesting that Windows' own ECHO also FAILS to beep under the GUEST logonid,
but sounds fine under my ADMIN logonid: ECHO Ctrl-G ENTER

Under GUEST, Control Panel/Sound/Sounds/Default Beep/test works properly.

What Registry tweak/whatever? is blocking ECHO, and therefore, my program?

 

[MtheK]

FINALLY!!! I was able to get a sound by using PLAYSOUND over BEEP and MESSAGEBEEP,
so, at least MY program NOW has sound under the GUEST LID, unlike ECHO !!!