I can hear Beep sound(Not sound card) once in workstation 7, under the windows 7 x64.
However i found that there seems no Beep sound at all with workstation 9(under any guest os), while I have planned to test something under the old DOS os.
I have searched on the internet and found nothing helpful informations, Almost all of relative is about how to turn Beep off but not the contrary. I tried setting mks.noBeep = "false" in either config.ini or relative vmx file but no help.
It seems differ from the guys experienced as the following:
http://communities.vmware.com/message/2155736
with a different version from his, and i had indeed used a Beep working workstation 7 once.