Linking my online IDs with my Windows user account

Windows 7 have a new feature that enable you set permission on shared folder with Windows Live user. This feature valid only with HomeGroup, you can share a folder with one or more Windows Live user by click Link online IDs in User Account, see figure below


Next, click Link online ID in Online ID column

Next, type your Windows Live ID and password, after this click Sign in

Here is my picture that display a Windows Live ID


Since here, when you right click to share 1 folder, you can add share permission with Windows Live ID user similar with other users.
You can add many Windows Live ID as possible.