I decided to install Yahoo messenger, because i have a friend that uses it. It installed Yahoo mail, which i dont want because i use OE. Now i want to uninstall it and i followed the normal precedure of using Add/Remove programs, but it wont uninstall. It is still listed in the menu.

As far as I'm aware. the link that it installs is just an URL to your inbox and it goes through the browser that you use. but if all else fails just uninstall the whole of yahoo messenger and then reinstall it. making sure not to select yahoo mail when you come to those options.

This is if your using IE as your default browser.
Right-click on internet explorer.
Click on properties
Click on programs in the top tab bar.
There you can change your default email service to outlook express again.

I don't think it is possible to install yahoo mail. like spellbyte said it would have been only a link.