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Google did it again - Not found error in Windows Live Writer and Open Live Writer

In the summer of 2015, Google turned off there old authentication system and made the switch to OAuth 2.0. Although better security can only be encouraged in this case it had the unfortunate side effect to break Windows Live Writer, the blog writer I used for years. Luckily, thanks to the effort of Scott Hanselman, Google was kind enough to re-enable the old security mechanism for a little bit longer. In the meanwhile Scott started the effort to make Windows Live Writer Open Source.
Last week this story came to an end with the announcement of Open Live Writer, an open source fork of Windows Live Writer. Although some features are still missing, this is great news as it will give Windows Open Live Writer a new future...



Inside the announcement, the support for OAuth 2.0 was mentioned as to be added 'VERY SOON':

ADDING VERY SOON: Google runs the excellent Blogger blog service. We've worked with the Blogger Team within Google on this project, and they've been kind enough to keep an older authentication endpoint running for many months while we work on Open Live Writer. Soon, Google and Blogger will finally shut down this older authentication system. Blogger will use the more modern OAuth 2 and Open Live Writer will be updated to support OAuth 2. Windows Live Writer will never support this new OAuth 2 authentication system, so if you use Blogger, you'll need to use Open Live Writer.
Unfortunately the Blogger guys didn't read the announcement very well I think, as they disabled the old authentication endpoint immediatelly :-( So if you try to connect to Blogger using either Windows Live Writer or Open Live Writer, you'll get a 'Not Found' exception.
I hope a fix will be available soon as typing in the online editor ain't fun!

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