This depends on what OS, whether the system has a sound card, and whether you are refering to warnings your application or VFP generates. Try:
Declare long Beep IN WIN32API AS myBeep ;
long dwFreq, long dwDuration
myBeep(1500,100)
myBeep(1500,1000)
myBeep(2000,100)
myBeep(500,100)
Rick