Error 10048, can not use Socket address using Serva32

Hi,
I can’t use Socket address using Serva32 and it gives me the following annoying message “Error 10048 Only one usage of each socket address (protocol/network address/port) is normally permitted”. Why can’t Serva32 bind the SNTP port? What could be the main cause? I need your assistance. Help me immediately with best solution.
Thanks.

Error 10048
Only one usage of each socket address (protocol/network address/port) is normally permitted.
Serva32 cannot bind the SNTP port
An application is already listening on this port
