We have updated the tutorial and sample for the Messenger Library at http://msdn2.microsoft.com/en-us/library/cc298458.aspx. We have also created a new page hosting all of our samples at: http://messenger.mslivelabs.com/samples/.
We have made a number of updates to the Hello World sample, primarily to use V2.5 API additions such as:
We have also made a number of minor changes to improve the readabilty of the sample and tutorial.
The V2.5 API has improved reliability for sign-in in different browsers. We encourage you to try it out and let us know how you are using Messenger in your web sites.
Windows Live Contact and Messenger Platform