Microsoft: Skype runs on Windows Azure; SkyDrive up next

Microsoft: Skype runs on Windows Azure; SkyDrive up next

Summary: Microsoft is continuing to move more of its cloud services onto Windows Azure. The latest in the queue: Skype and SkyDrive.


Microsoft is continuing to move more of its biggest cloud services onto its Windows Azure public cloud.


According to a December 16 post by The Register, which quotes Corporate Vice President Scott Guthrie, Microsoft already has moved its Skype service onto Windows Azure

Back in 2012, Microsoft execs confirmed they were moving part of the Skype infrastructure to Microsoft-hosted supernodes in Microsoft datacenters. Officials wouldn't comment at that time when I asked about the operating system/environment on which they were hosted.  

In September of this year, Microsoft execs said there were 50 billion minutes of Skype-to-Skype calls running on the Windows Azure cloud. But, again, they never said which parts of Skype's updated infrastructure were actually running on Windows Azure vs. on other platforms.

Guthrie also said in the new Register interview that Microsoft's SkyDrive cloud storage team is "in the process of decommissioning their old servers and moving everything onto Azure."

"All new storage on SkyDrive now goes to Azure," Guthrie told The Reg.

Guthrie moved from the Developer division to the Windows Azure team back in 2011.

Microsoft execs have said publicly that Microsoft is building most, if not all, of its new cloud services and features to run on Windows Azure from the get-go. But Microsoft isn't planing to move all of its legacy cloud services -- such as Hotmail/Outlook, Xbox Live and Bing -- to Windows Azure. Instead, at least for the forseeable future, they'd continue to run in Microsoft's datacenters on their own dedicated servers, I was told.

(And before I hear from anyone with quibbles about Xbox Live and Azure, when I asked this fall, I was told only "portions" of Xbox Live and various Xbox games – including all of Halo 4’s online services - run on Windows Azure.)

Microsoft execs committed several years ago to moving Office 365 to run on Windows Azure. While the Office 365 team integrates with Azure features, such as Windows Azure Active Directory (WAAD), Office 365 still doesn't run on Windows Azure, nor do its component parts -- SharePoint Online, Exchange Online or Lync Online. Microsoft CRM Online also uses WAAD, but as far as I know, is not hosted on Windows Azure.

I asked Microsoft execs for confirmation that Skype is hosted on Windows Azure and that the still-to-be-renamed SkyDrive is up next. No word back so far.

Topics: Cloud, Microsoft, Storage, Windows


Mary Jo has covered the tech industry for 30 years for a variety of publications and Web sites, and is a frequent guest on radio, TV and podcasts, speaking about all things Microsoft-related. She is the author of Microsoft 2.0: How Microsoft plans to stay relevant in the post-Gates era (John Wiley & Sons, 2008).

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  • Where was it?

    I hate to think Skype was previously running on a random backbone infrastructure. The Azure cloud is the right place.
    Sean Foley
  • Where was it?

    I hate to think Skype was previously running on a random backbone infrastructure. The Azure cloud is the right place.
    Sean Foley
    • Easy to explain

      First release of Skype - 2003
      First CTP of Azure - 2008
      I do not think Skype was previously running on a "random infrastructure". What does that mean anyway?
      • probably thinks

        it was bid out and the lowest cost provider was selected. Maybe some truth to that but I wouldn't be surprised if Skype eventually had their own data centers, they just weren't called Azure.
  • Tried a skype number, fail

    You have to have desktop client running 24/7 to get voicemails.
  • Using own products is great

    Is is great to see MS using their own products. When developers only provide APIs but do not develop using them the end result is usually a crappy API that is hard to use.
  • What about "legacy" Windows 8.1

    Personally, I think it would be nice if skydrive worked properly on Windows 8.1.
    • Sorry

      Works fine for me.
    • Could you please care to elaborate

      SkyDrive is fully integrated into Windows 8.1 and I can access it as if my local drive through Windows Explorer.
      Ram U
    • What's not working?

      I was just commenting yesterday how well Skydrive works across all my stuff. I've used for syncing my personal items and even sharing items with customers.
  • Khype and cookies

    There is a white blotch on my Skype icon. When I click on it it says cookies must be allowed. My computer tech tells me my computer is getting problems and major slow down because I had then allowed. I there anyway I can use Skype without cookies? Gosh but I am tired of my computer usage being hijacked by all these websites! Can someone help me about my inoperative Skype? Thanks Toni