The thin line of cooperation between tech giants has been broken once again, with Microsoft taking to its TechNet blog to bemoan Google's practices during the development of its Windows Phone YouTube app.
The YouTube app, developed by Microsoft, has run into several stumbling blocks in its history. Microsoft took down the app in May and again this week after Google rendered it effectively useless by blocking all YouTube content to it.
Google had objected to Microsoft's app on several grounds, according to the post written by David Howard, Microsoft's deputy general counsel. A major sticking point is the use of HTML5, the platform on which Google insisted the app be developed.
"This was an odd request since neither YouTube's iPhone app nor its Android app are built on HTML5," Howard wrote. "Nevertheless, we dedicated significant engineering resources to examine the possibility."
Howard added that developing an app in this way brings significant technical challenges.
While the HTML5 app was under development, Microsoft decided this week to temporarily publish the existing non-HTML5 app, which Google immediately blocked. Howard claimed that Google's reasons for doing so were "manufactured" adding that Google's roadblocks are "impossible to overcome, and they know it".
Howard also said Google had taken issue with the way the app delivers advertising content, saying that the app did not always serve the ads which had been specified by the content uploader.
While Google does not have the power to remove the app from Microsoft's app store, it can block the app from accessing its video library.
YouTube maintained that it was trying to create a "consistent" experience across all devices.
"Microsoft has not made the browser upgrades necessary to enable a fully-featured YouTube experience, and has instead re-released a YouTube app that violates our Terms of Service," the firm said.
"It has been disabled. We value our broad developer community and therefore ask everyone to adhere to the same guidelines."
Howard said Microsoft is "happy to work with Google to solve any legitimate concerns they may have".
"In the meantime, we once again request that Google stop blocking our YouTube app," he concluded.
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