How to Disable Sounds on MSN Messenger
- 1). Open MSN messenger and select the "Menu" tab button.
- 2). Select "Tools" from the submenu and then scroll all the way down until you see an "Options" menu, then select it.
- 3). After the options menu pops up, select the "Alerts and Sounds" option on the left side of the list.
- 4). Ignore the "Alerts" options at the top and uncheck all of the boxes under the sounds heading. This will disable all the sounds, and the MSN messenger will chirp no more.
Source...