No its not possible. If you want to add new sounds to your library you can use the Random Sound feature of Messenger Plus! or download some soundpacks from websites such as MPSounds.net
Sound Server - by chaossplit on 09-07-2005 at 05:11 PM RE: Sound Server - by absorbation on 09-07-2005 at 05:13 PM RE: Sound Server - by Dempsey on 09-07-2005 at 05:14 PM RE: Sound Server - by Sunshine on 09-07-2005 at 05:15 PM