The LiveUpload for YouTube plugin (which we first discovered last year along with LiveUpload for Facebook) is a piece of add-on software designed specifically for Windows Live software. With this plugin installed, you can upload your videos from the Windows Live Photo Gallery software (yes, it handles videos too!) or from Windows Live Movie Maker.
In Photo Gallery, the upload option appears under Publish –> More Services while in Movie Maker a new button called “Publish on Web” offers the option from its menu.
If you’ve been a fan of the YouTube plugin in the past, you’ll now need to download this critical update in order to continue to use it. Due to a change in YouTube’s hashing algorithm, you’ll no longer be able to authenticate and login to YouTube with the older plugin. Instead, you’ll need to download the updated release (1.1) from the CodePlex site here. There are no other features or updates in this new version besides the one bug fix.