But the relationship is not perfect. Google in May complained about Microsoft's unwillingness to open its chat standard so that other companies could incorporate Messenger (and now Skype) contacts into their clients. Google, by comparison, had allowed third-party chat clients to access Google Talk for years. At the same time Google was making that complaint about Microsoft, however, the search giant was working towards replacing Google Talk with Hangouts, a private chat architecture.
"[Hangouts] features are not supported by third-party clients because they aren't standardized," a Google spokesperson told TechHive/PCWorld in May . "We would not rule out working with third-party clients if we saw a strong desire to do so from other large messaging systems."
Google's doesn't completely leave third-party clients out in the cold as users can still communicate via text-based chats with Hangouts accounts.
Meanwhile, Microsoft decided against including CalDAV and CardDAV support in its modern UI calendar app in Windows 8 earlier in 2013. That decision has left Windows RT and modern UI fans without a simple method to sync their Google contacts and calendar with their PC; however, Microsoft does offer a workaround on its support site.
So while Google and Microsoft were able to come to terms on YouTube and Google Sync for Windows Phone, this pair of frenemies continues to bicker on a number of other issues.
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