Well, We've just learned that the MSN Messenger 7.0.813 QFE Patch has leaked to the internet! The patch is a small tool from Microsoft that will update your MSN Messenger to the latest version without having to redownload the entire setup package. The patch is only 757KB. We have confirmed that this release leaked from Microsoft and is not a resource hacked version.
You'll notice that this version includes better performance and unblocks files previously blocked. It also can be installed "Hot", or while using MSN Messenger.
News source: Messenger Plus! Zone