All posts by onlyconnect

cloud computing, microsoft

Microsoft Office 2013 SkyDrive Pro in action, with offline documents

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Microsoft Office 2013, combined with Office 365 or the new SharePoint, introduces SkyDrive Pro. This is an area where users can store documents online, similar to the public SkyDrive, but as part of an organization’s SharePoint site or Office 365 team site.

One features which I was glad to see is the ability to store documents offline in a special Explorer folder. These are kept synchronized with the online storage.

Here is how this works with my preview Office 365 account. I log in to the online portal, and click the SkyDrive option in the menu.

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I see my SkyDrive files.

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At top right is a SYNC hyperlink. Click that, and this sets up synchronization to a special Explorer folder, which in my case is called SkyDrive @ Office Next. This is not just a shortcut to a network location. The documents remain there if you are working offline.

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This excellent feature seems to depend on a new client called SkyDrive Pro Preview which has an icon in the notification area and also shows up in Task Manager.

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If the SkyDrive Pro client is not installed and you attempt to sync your online files, the bad old SharePoint Workspace shows up instead. The consumer SkyDrive client will not do. SharePoint Workspace also supports offline files, but does not integrate with Explorer and is prone to go wrong.

Now here is the puzzle. Microsoft loaned me a Samsung Slate with Office 2013 pre-installed, and this has SkyDrive Pro. However it also has SharePoint Workspace, and the associated Office Upload Center, which duly went into a sulk when trying to sync my SkyDrive Pro files.

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Clicking Resolve and entering my login details did nothing. However, when I clicked on the SkyDrive Pro icon instead, I got the new-style Office sign-in, following which everything worked.

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A few puzzles then. Is the SkyDrive Pro client really new, or it is just a new wrapper for the bad old SharePoint Workspace?

Further, it seems that Microsoft has not yet cracked the problem whereby users sign in, tick the “Keep me signed in” option, but still get asked to sign in repeatedly.

gpu computing, professional

Exascale computing: you could do it today if you could supply the power says Nvidia

Nvidia’s Bill Dally has posted about the company’s progress towards exascale computing, boosted by a $12.4 million grant from the U.S. Department of Energy. He mentions that it would be possible to build an exascale supercomputer today, if you could supply enough power:

Exascale systems will perform a quintillion floating point calculations per second (that’s a billion billion), making them 1,000 times faster than a one petaflop supercomputer. The world’s fastest computer today is about 16 petaflops.

One of the great challenges in developing such systems is in making them energy efficient. Theoretically, an exascale system could be built with x86 processors today, but it would require as much as 2 gigawatts of power — the entire output of the Hoover Dam. The GPUs in an exascale system built with NVIDIA Kepler K20 processors would consume about 150 megawatts. The DOE’s goal is to facilitate the development of exascale systems that consume less than 20 megawatts by the end of the decade.

If the industry succeeds in driving down supercomputer power consumption to one fortieth of what it is today, I guess it also follows that tablets like the one on which I am typing now will benefit from much greater power efficiency. This stuff matters, and not just in the HPC (High Performance Computing) market.

.net, cloud computing, microsoft, professional, software development

Microsoft opens up Office 365 and Azure single sign-on for developers

Remember Passport and Hailstorm? Well here it comes again, kind-of, but in corporate-friendly form. It is called Windows Azure Active Directory, and is currently in Developer Preview:

Windows Azure AD provides software developers with a user centric cloud service for storing and managing user identities, coupled with a world class, secure & standards based authorization and authentication system. With support for .Net, Java, & PHP it can be used on all the major devices and platforms software developers use today.

The clearest explanation I can find is in John Shewchuk’s post on Reimagining Active Directory for the Social Enterprise. He makes the point that every Office 365 user is signing on to Microsoft’s cloud-hosted Active Directory. And here is the big deal:

The Windows Azure Active Directory SSO capability can be used by any application, from Microsoft or a third party running on any technology base. So if a user is signed in to one application and moves to another, the user doesn’t have to sign in again.

Organisations with on-premise Active Directory can use federation and synchronisation (Shewchuk fudges the distinction) so that you can get a single point of management as well as single sign-on between cloud and internal network.

Is this really new? I posted about Single sign-on from Active Directory to Windows Azure back in December 2010, and in fact I even got this working using my own on-premise AD to sign into an Azure app.

It seems though that Microsoft is working on both simplifying the programming, and adding integration with social networks. Here is where it gets to sound even more Hailstorm-like:

… we will look at enhancements to Windows Azure Active Directory and the programming model that enable developers to more easily create applications that work with consumer-oriented identities, integrate with social networks, and incorporate information in the directory into new application experiences.

Hailstorm failed because few trusted Microsoft to be the identity provider for the Internet. It is curious though: I am not sure that Facebook or Google are more well-trusted today, yet they are both used as identity providers by many third parties, especially Facebook. Spotify, for example, requires Facebook sign-in to create an account (an ugly feature).

Perhaps the key lesson is this. Once people are already hooked into a service, it is relatively easy to get them to extend it to third-parties. It is harder to get people to sign up for an all-encompassing internet identity service from scratch.

This is why Azure Active Directory will work where Hailstorm failed, though within a more limited context since nobody expects Microsoft to dominate today in the way it might have done back in 2001.

microsoft, sharepoint

SharePoint security update stops SharePoint working

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This morning I noticed that my test SharePoint 2010 installation was not working. Browsing to the site got me HTTP Error 503. The service is unavailable.

The problem seems to be related to the update KB2553365 which I noticed had been installed last night, following an initial failure.

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Note this point in the description of the update:

After you install this security update on all SharePoint servers, you will have to run the PSconfig tool to complete the installation. For more information about how to use the PSconfig tool, visit the following TechNet webpage:

PSconfig command-line reference (SharePoint Foundation 2010)

In other words, if your server is set up update automatically, this update breaks SharePoint until you manually run the PSconfig utility which applies SharePoint updates.

Further, there is no automatic notification of this requirement. You have to figure it out.

SharePoint administrators know about PSconfig, but companies with Small Business Server or other small-scale environments are not always familiar with the problem.

Worse still, in my case PSconfig has not fixed it. I am restoring last night’s backup.

microsoft, professional, security, software development, windows

Macro virus reborn: ACAD/Medre.A steals drawings using AutoCAD AutoLISP

Remember the Concept virus? Someone wondered if you could make a self-replicating virus with a Microsoft Word macro. It worked; and the proof of concept soon became a real virus causing the usual mayhem and spoiling our clever VBA templates.

Microsoft locked down Office macros fairly effectively; but the idea lived on and has re-emerged as an AutoCAD virus which runs automatically when a drawing is opened. It is not quite the same, as in AutoCAD the code has to be in an external .lsp file, but you can have code in the S::STARTUP function run when a document loads, as explained in the documentation here. The malware relies on the fact that when drawings are emailed, users often archive an entire folder rather than sending a single file. This is how the virus spreads.

Most of the actual malicious code is not in AutoLISP, but in the more familiar form of VBScript files to which the code calls out. The malware then emails AutoCAD drawings to addresses in China – a rather crude mechanism for stealing data, but apparently somewhat effective since on investigation the target mailboxes were found overflowing with messages.

The threat is serious though. Much intellectual property and many future product plans are contained in AutoCAD drawings.

Security vendor ESET’s white paper [PDF] describes the attack in detail.

According to ESET, the combined efforts of Autodesk, Chinese ISP Tencent, and the Chinese National Computer Virus Emergency Response Center have contained the virus for now. There is also a free clean-up utility here: http://download.eset.com/special/EACADMedreCleaner.exe.

professional, software development, visual studio, web authoring, windows

Telerik releases Kendo UI components for ASP.NET MVC

Component vendor Telerik has released an updated version of Kendo UI, its HTML5 framework. This is the first non-beta release with support for ASP.NET MVC server wrappers, with components including Grid, ListView, calendar and date controls, tree view, menu, editor and more. Kendo UI supports the MVVM (Model View ViewModel) pattern popular with Microsoft developers.

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Telerik seems to be treading a careful path, maintaining its strong links to the .NET developer community while also creating a framework that can be used on other platforms.

I spoke to Todd Anglin, VP of HTML5 tools. Why the support for ASP.NET MVC – is Telerik seeing this becoming more popular than Web Forms, the older ASP.NET approach to web applications?

“Something in the range of 70% of ASP.NET developers are on web forms. We do see a bit of a trend that as they start new projects, developers are adopting ASP.NET MVC and HTML5, which is where it makes sense to use Kendo UI,” he told me.

The main reason though is that Kendo UI is less suitable for Web Forms, where more of the client-side code is generated by the framework. “Web Forms are a very high level abstraction,” said Anglin. “With MVC developers are a little closer to the metal.”

That said, he is not ruling out a Web Form wrapper for Kendo UI long-term.

Anglin says Kendo UI’s use of JQuery is a distinctive feature.  “Over the last few years JQuery has clearly risen above the pack to be the most common core Javascript library and the one most developers are familiar with. Unlike most commercial libraries out there Kendo UI chooses the JQuery core as the starting point and builds on that, so developers that adopt Kendo UI have a smoother on-ramp.”

Kendo UI supports both mobile and desktop web applications, but with different controls. “We believe that developers should offer experiences that are tailored to each device class, which is why you have Kendo UI web for keyboard and mouse, and Kendo UI mobile with a mobile-specific interface. We share code behind that, like the data source, between web and mobile, but we don’t think the interface on a mobile device should be the same as you show on a desktop browser,” said Anglin.

What about the tools side? Although Anglin says “We want to be agnostic on tools”, there is particularly good support for Visual Studion. “Kendo UI integrates with anything that supports HTML and JavaScript well, which includes the latest version of Visual Studio. We are delivering full vsdoc support for Visual Studio so that developers in that environment get Intellisense for JavaScript. But if you’re on a Mac you can use other tools,” he told me.

More interesting is a forthcoming cloud IDE. “We’ve just revealed a new tool called Icenium which is a cloud-based development environment for creating apps in HTML and JavaScript. It’s an incredible environment for building apps with Kendo UI.”

How about HTML5 apps that target the Windows Runtime (Metro) in Windows 8 – will Kendo UI work there? Apparently not:

“It’s certainly something we’ve paid attention to. Telerik’s primary position for Windows 8 runtime and Windows 8 development is with the traditional .NET targeted tools. Our RAD tools later this year will focus on introducing XAML and HTML tools for Windows Runtime. The HTML tools that we introduce will have a shared engineering core with Kendo UI, but we’ll make a tool that is specifically targeted at that runtime.

“Kendo UI is really focused on the cross-platform, cross-browser experience. You write once, at a core code level, and then use all the runtimes out there for HTML and JavaScript. Whereas Windows Runtime is leveraging familiar technology in HTML and JavaScript, but when you write a Windows Runtime app you are writing Windows software. It’s very platform-specific.”

professional, software development, visual studio

The Development Game: Achievements in Visual Studio 2012

Microsoft has created an Achievements extension for Visual Studio 2012. Borrowing from achievements in games such as those on Xbox 360, and perhaps also inspired by the Office Ribbon Hero,  Visual Studio Achievements lets you earn awards for completing certain tasks, and share them on Facebook and Twitter. You can download Visual Studio Achievements from the Extension Gallery within the IDE.

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Once installed, you will see a notification each time an achievement is unlocked.

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You can also check your progress via the Achievements option in the Tools menu, though mine seems slow to update.

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It sounds a terrible idea, though there are some entertaining ones. Here are a few I like:

Job Security (0 points)

Write 20 single letter class level variables in one file. Kudos to you for being cryptic! Uses FxCop

and

Regional Manager (7 points)

Add 10 regions to a class. Your code is so readable, if I only didn’t have to keep collapsing and expanding!

and

Interrupting Cow (5 points)

Have 10 breakpoints in a file.Where’s that bug? Could here, could be there, could be anywhere!

and

Architect (5 points)

Add 10 items to a sequence diagram. You’re not just a developer; you’re an architect!

You get the idea.

Microsoft is using this to do some not-so-subtle promotion, with plenty of Windows Azure achievements, though it seems to short on Windows 8 badges as yet.

Unfortunately Visual Studio crashed shortly after I installed this extension and I am suspicious.

All pretty silly; yet I like the idea of friendly notifications when you breach some coding guideline.

amazon, cloud computing, development, software development, sql

Microsoft SQL Azure versus SQL Server on Amazon AWS

Amazon RDS for Microsoft SQL Server offers cloud instances of SQL Server. Amazon’s offering even supports “License Mobility”, Microsoft jargon that lets volume licensing customers use an existing SQL Server license for an Amazon’s instance. But how does Amazon’s cloud SQL Server compare with Microsoft’s own offering, SQL Database running on Azure?

Peter Marriott has posted on the subject here (registration required). The key point: despite the obvious similarity (both are SQL Server), these two offerings are radically different. Amazon’s RDS SQL is more IaaS (infrastructure as a service) than PaaS (platform as a service). You choose an edition of SQL Server and rent one or more instances. The advantage is that you get full SQL Server, just like the on-premise editions but hosted by Amazon.

Microsoft’s Azure-hosted SQL on the other hand is more abstracted. You do not rent a SQL Server instance; you rent a database. Under the covers Microsoft provides multiple redundant copies of the data, and if traffic increases, it should scale automatically, though the database size is limited to 150GB. The downside is that not all features of SQL Server are available, as I discovered when migrating data.

Marriott adds that SQL Azure supports encrypted connections and has a more usable administration interface.

A further twist: you can also install SQL Server on an Azure Virtual Machine, which would get you something more like the Amazon approach though I suspect the cost will work out higher.

delphi, development, embarcadero, software development, windows

DevExpress offering Metro-inspired Tile control for Delphi VCL, plans to drop support for Delphi 7

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DevExpress has released an update to its VCL component suite, version 12.1, which includes a Metro-inspired tile control. That is, it looks like a Windows 8  Metro-style application, but in reality it runs as a desktop application. The VCL components support Embarcardero’s Delphi and C++ Builder, but not the FireMonkey library that runs cross-platform.

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The new release also adds a “Server Mode” for  the ExpressQuantumGrid grid control, which retrieves only those rows needed to populate the current view.

DevExpress CTO Julian Bucknall has posted about the update. He says it is time to drop support for Delphi 7 (though this is supported in 12.1):

12.1 will be the last version to support Delphi and C++Builder 2010. I will sound a further note of caution: it’s likely that in 2013 we shall drop support for Delphi 7 and Delphi 2007 (what you might call the “ASCII IDEs”), so that we can concentrate on the latest run-times and environments.

Delphi 7 is significant because it was the last version to use its own dedicated IDE built with Delphi itself, and by today’s standards is delightfully small and fast.

Bucknall has reservations about Embarcadero’s move to Clang and LVVM for 64-bit C++ Builder and eventually for the other languages too:

I’m going to say we shall treat it with kid gloves. Re-engineering a compiler so fundamentally says “breaking changes” to me, especially given the necessary extensions that are present in the current C++Builder to interface with Delphi. So, fair warning: if the changes are too severe, we shall not support 64-bit C++Builder in 12.2. It took us long enough to support 64-bit Delphi across our entire product line, and this year we don’t have the resources. That doesn’t mean we won’t ever do this (after all, Embarcadero are saying that they’ll switch completely to Clang/LVVM at some point), just that we won’t this year.

Returning to the Tile Control: it will be fascinating to see if this sort of approach, mimicking Metro with a desktop app, becomes popular. Microsoft is promising some of the same with Office 15, though we have not seen much of this officially yet. The advantage is that you can make desktop apps just as touch-friendly as Metro apps. The disadvantage is that you do not get Windows Store support, Contracts, app isolation, or other benefits of the Windows Runtime which underlies the Metro side. Users may be confused.

I doubt Microsoft will mind though. It all helps to promote the Metro style which is the distinctive feature of Windows 8.