Disable and Remove Yahoo! Messenger 9 Ads

To remove and disable ads display on Yahoo Messenger 9, follow the trick below:

1. Run Registry Editor (regedit.exe).
2. Navigate to the following registry key:

   HKEY_CURRENT_USER\Software\Yahoo\pager\Locale

3. In the right pane, locate a value named Enable Messenger Ad with default value as 1. Set the value to 0.
4. Restart Yahoo! Messenger 9.0.

The ads will be disappeared from Yahoo Messenger after restarting.