Используй команду SET BELL ....


Цитата из MSDN по VFP9:

Turns the computer bell on or off and sets the bell attributes.


SET BELL ON | OFF
-or-
SET BELL TO [cWAVFileName]


Parameters
ON
(Default) Turns the bell on.

OFF
Turns the bell off.

TO cWAVFileName
Specifies a waveform sound to play when the bell is rung. cWAVFileName can include a path to the waveform sound.

Issue SET BELL TO without cWAVFileName to restore the default waveform sound.

Remarks
SET BELL enables or disables the sounding of the bell during editing when you reach the end of a field or enter invalid data.

Example
The following example plays the Ding.wav.

Copy Code
SET BELL TO (ADDBS(GETENV('windir')))+"MEDIA\DING.WAV"
?? CHR(7)


Этот фокус работал у меня еще на VFP6.

... приятного прослушивания.