Alonso,

The code works for me. Usually the error message you are getting means that the API function has not been properly declared. Make sure the spelling and capitalization of your declaration exactly matches your call. Otherwise, Try;

*	Find out if this machine has a sound card.
*	Return number of devices with WAVE playing capability
DECLARE INTEGER WaveOutGetNumDevs IN WinMM

LOCAL lnDevices

lnDevices = WaveOutGetNumDevs()

IF lnDevices > 0
     SET BELL TO FULLPATH( "startup.wav" )
     ?? CHR( 7 )
ENDIF