Cannot change default email program to yahoo in IE7 no pull-down choice available?

I have tried the IE option window in the programs' tab and did not find Yahoo as an option. While trying to find a solution I read about having to change the registry, however they did not offer the specifics. Does anyone know how to do it? thanks
Cannot change default email program to yahoo in IE7 no pull-down choice available?
To make Yahoo! Mail the default email application for your computer, click Tools %26gt; Internet Options %26gt; Programs tab %26gt; under E-mail click the down arrow and select Yahoo! Mail %26gt; click Apply and OK. If Yahoo! Mail isn't listed as a default email option, adding one of Yahoo鈥檚 free downloads to your computer, Yahoo! Messenger, Yahoo! Music, or Yahoo! Toolbar will add Yahoo! Mail to the list of email options, and if you don't want them, uninstall them ( it will leave Yahoo! as an email option ), or just follow the directions below.





Using Internet Explorer just click "Continue" on the link below to download a small 60K file that will enable Yahoo! Mail to be the default email application for your computer. Whenever you click on an email address on any web page or in any computer program, Yahoo! Mail will open for you in a new window.





If Internet Explorer displays a yellow security bar at the top, click on it and select Install ActiveX Control from the menu.


If a security warning comes up with Yahoo! Inc. as the publisher, click Install.





Now you can click on an email address anywhere and your computer will automatically open up Yahoo! Mail for you.


You can even send documents directly from Word, Excel, or other Windows applications.





Requirements:


Windows 95 / 98 / ME / NT / 2000 / XP / Vista


Internet Explorer 4.0 or higher





http://help.yahoo.com/help/uk/mail/ext/e...
Reply:Try reinstalling . Sorry it didn't work.