The most recognisable aspect of AOL is the sound alert: "You've Got Mail!", which was so recognisable that a late-'90s romantic comedy used the phrase as its title. Despite being an identifying trademark, the AOL client program allows a user to change this sound to whatever they wish. AOL as an Internet interface or client has been superseded as a way to interact with the Internet, but it still enjoys use as a free supplement to regular Internet use.
Install and sign onto the AOL client. Go to the AOL keyword bar and type "Manage Personalities."
Click the "Environment" tab, then click on the "AOL Sounds" bar. Click "Change" next to "AOL Sounds: You've Got Mail," then select "Use a sound on my PC."
Locate and click on the file you want to replace the "You've Got Mail" sound. Note that the file has to be a .wav format file that is under 60kb. Click the "X" to save and exit.