It was a shame really as it was a really exciting project with Microsoft leading the way in the area. It's been only recently that Google and Yahoo have caught up and released their own APIs for accessing their users data. [...] With the possibility of actually using the code myself creeping up on the horizon I decided to put the time in to write wrappers for PHP. It can be broken down into two components.

These two components are the delegated authentication, used to get permission from the user to grab the data, and the actual interface to the Windows Live Contacts data. Both packages have been submitted to PEAR.