Hotmail or Windows Live provides e-mail service via the Internet. Since it does not cost any money to set up a Hotmail account, many such accounts exist, so it becomes difficult to find a user. However, if you desire to locate someone with a Hotmail account for business or family reasons, you can work through Windows Live ID to search for this data.
Sign in to your Hotmail account.
Click your mouse on the Live "Home" link.
Locate the search box that says "Search People or Web." Click your mouse one time in the box and then click the words "Search People" via your pull-down box. Type in the name of the individual whose e-mail address you desire to find and push "Enter."
Browse through your results list and click the link of the individual who you want to find.
Click "Profile" and look through the person's data to obtain his e-mail information. Then, send him a message via your Hotmail account.