param (Optional) The system code for the appropriate sound. Each system code corresponds to a specific Windows program event.
• 0 (Error) – Corresponds to the Critical Stop program event.
• 1 (Warning) – Corresponds to the Exclamation program event.
• 2 (Question) – Corresponds to the Question program event.
• 3 (Status) – Corresponds to the Asterisk program event.
• 4 (Default) – Corresponds to the Default Beep program event.
Note: To view the list of Windows program events, click Start > Settings > Control Panel > Sounds and Audio Devices, and then click the Sounds tab. The Program Events list displays a list of system events. Events marked with a speaker icon have an associated sound.