Hotmail has a feature using which a user can change the reply to address that is if you want people reply to an address other than your hotmail address.
Click the Options link available at the top of the right hand side.
Select More options from the menu list. Navigate to Customize your mail section and click the Reply-to address link.
In the Reply-to address section, select Other address radio option and enter the email address where you want people reply to. And click the Save button to the save the changes.