Category Archives: windows

microsoft, windows, windows 7

File operations in Windows: the good and the bad, the past and the future

1 Comment

Microsoft’s Windows chief Steven Sinofksy has posted details of what file operations look like in Windows 8. There are a few changes, including a consolidated view of all current file operations that lets you pause and resume any of them. You can also click for more details and get a pretty graph.

image

Microsoft has also worked on the conflict resolution dialog, the one that says “Copy and Replace”, “Don’t copy”, and “Copy, but keep both files”. I consider this a pretty good dialog, but the new one adds the ability to inspect the actual files or even open them to check which is which.

A few observations. First, file operations are hard to get right from a usability perspective. I guess we have all had the experience of trying to help a non-technical user over the phone with some operation like, say, downloading a zip file, extracting it, and doing something with the contents. A common problem is that the user cannot find what they downloaded. Then they are not sure whether they did download it, and do so again. Then they get confused by the ZIP file, which mostly behaves like a folder in Explorer but is not quite the same; and of course since Windows XP SP2 all downloaded files are “blocked” by default which is another source of perplexity.

If you add complications like hidden folders and hidden file extensions in Windows Explorer, what should be a simple task can be really awkward. Let’s say your user has a video file called somemovie.vob that needs to be renamed to somevideo.mpg before it will play. With the default setting, when you rename it you actually get somevideo.mpg.vob. You have to talk the user through showing file extensions before it will work, or maybe open up a command prompt and use ren which does actually work correctly. Microsoft could fix this with a “Change file extension” option in Windows Explorer, but I do not know if this has made it to Windows 8.

The problems with hidden files and hidden file extensions show that something is wrong with the underlying model. Showing them is wrong because they are ugly and confusing; hiding them is wrong because you sometimes need them. It is a partial abstraction that is only partly successful. 

Apple’s solution in iOS is to hide the file system completely. The user will never have these problems. However, this is an autocratic approach that introduces new difficulties. If you have a documents in Pages in iOS you cannot move it directly to DropBox, for example, because there is no accessible file system. You are limited by whatever options the Pages app gives you for doing something with a document.

I believe thought that Apple is on the right lines. The app-centric view makes sense to users, and abstracting the file system so that users do not generally need to care about the location of a file is a reasonable goal. If the File Explorer goes the way of the command prompt, and becomes a tool used rarely by most users, that will mean Windows usability has improved.

Cloud-centric computing has potential to improve this, with your local storage just a cache of your internet-stored documents and data.

Finally, it is worth noting that file operations have got significantly better in Windows. Using the clipboard to copy and paste files, which I think came in with Windows 95, was a big advance. Then Vista fixed another annoyance: multiple file operations would abort on the first failure, leaving you uncertain which files had actually been transferred. Vista broke performance though, and file operations could be hilariously slow as Windows “discovered” files or just seemed to hang with a spinning bagel. Service packs and then Windows 7 pretty much fixed that.

I still like ROBOCOPY though. Hey Microsoft – why doesn’t Explorer have “Copy new and changed files only” or “Mirror directory”?

hp, microsoft, mobile, professional, windows

HP business breakdown and why a PC spin-off could backfire

1 Comment

I had a look at HP’s latest financials, following last night’s triple blast of news from the computer giant. It is ceasing webOS operations, acquiring enterprise knowledge management company Autonomy, and considering (though only considering) a spin-off or other major change to its PC division, the Personal Systems Group. Here is what HP said:

As part of the transformation, HP announced that its board of directors has authorized the exploration of strategic alternatives for the company’s Personal Systems Group. HP will consider a broad range of options that may include, among others, a full or partial separation of PSG from HP through a spin-off or other transaction. (See accompanying press release.)

Looking at the results for the second quarter 2011, here is how the main pieces break down:

$millions

Segment Percentage of revenue Earnings Percentage of total earnings
Services 9,089 28.5% 1225 33.8%
Servers, storage and networking 5396 16.9% 699 19.3%
HP Software 780 2.4% 151 4.2%
Personal systems group 9,592 30.1% 567 15.7%
Imaging and printing 6,087 19.1% 892 24.6%
Financial Services 932 2.9% 88 2.4%

Note that “Earnings” is earnings from operations; HP actually made less money than that, because various other corporate costs have to be deducted. But it gives an idea of where HP’s profit comes from.

So what do these groups do? PSG is notebooks, desktops, workstations and other, where “other” I’d guess will include the webOS mobile devices. In PSG, notebooks accounts for 54% of the total, with desktops taking 38% of the rest. Virtually all of these run Windows.

In servers, storage and networking, 61% is from what HP calls “Industry standard servers”. This is code for Windows server.

Under services, the three big businesses are Infrastructure Technology Outsourcing (42%), Technology Services (30%) and Application Services (19%). The first of these is clear-cut (have HP run your infrastructure), but the second two are both consulting services and on a brief look seem to have some overlap.

Autonomy, by the way, reported revenue of $million 247 in the three months ending June 30 2011 – pretty tiny relative to HP.

A few comments then. It’s worth noting that PSG is the biggest single segment for revenue, but not so for profit, though it is still making a useful contribution.

Imaging and Printing contributes most earnings as a proportion of revenue. I do not know how much of that comes from absurdly overpriced ink cartridges!

If you take PSG together with Industry Standard Servers, you find that around 40% of HP’s revenue comes from boxes running Windows. If you then consider what its printers, network and storage systems attach to, and that a proportion of HP’s consulting business concerns Windows systems and applications, it is obvious that HP’s fortunes are deeply entwined with Microsoft.

If HP removes PSG that will still be true, though less so. But why would HP want do remove PSG? I would guess two main reasons. One is that it is unprofitable relative to the other segments, and the other is that HP foresees the business declining under the force of various well-documented pressures: Apple, mobile, cloud.

It still makes little sense to me. I can understand why HP might want to get out of consumer desktops and laptops, but it seems to me that to supply corporate PCs fits snugly with the rest of HP’s business and has beneficial side-effects. After all, PCs, printers and servers do all plug together both physically and conceptually. Getting rid of PSG might have a negative effect on other parts of HPs business.

In the SMB market, by the way, resellers like HP because unlike Dell it does not mainly sell direct. HP boxes generally work as advertised in my experience, though I rate the laptops less highly than the servers and desktops.

google, hardware, hp, microsoft, mobile, professional, software, systems, windows

HP discontinues WebOS, considers PC spin-off. Should have stuck with Microsoft

1 Comment

Oh yes, and buys Autonomy, a fast-growing specialist in enterprise knowledge management.

Here’s the news from HP’s announcement:

As part of the transformation, HP announced that its board of directors has authorized the exploration of strategic alternatives for the company’s Personal Systems Group. HP will consider a broad range of options that may include, among others, a full or partial separation of PSG from HP through a spin-off or other transaction. (See accompanying press release.)

HP will discontinue operations for webOS devices, specifically the TouchPad and webOS phones. The devices have not met internal milestones and financial targets. HP will continue to explore options to optimize the value of webOS software going forward.

In addition, HP announced the terms of a recommended transaction for all of the outstanding shares of Autonomy Corporation plc for £25.50 ($42.11) per share in cash.

A few quick comments. First, the failure of webOS does not surprise me. There is not much wrong with webOS as such; in pure technical terms it deserves better. Its focus on adapting web technologies for local mobile applications is far-sighted; it is a more interesting operating system than Android and in some ways it is surprising that it went to HP and not to Google, which is a web technology specialist.

The problem is that HP, despite its size, is not big enough to make a success of webOS on its own. This was my comment from just over a year ago:

Mobile platforms stand (or fall) on several pillars: hardware, software, mobile operator partners, and apps. Apple is powering ahead with all of these. Google Android is as well, and has become the obvious choice for vendors (other than HP) who want to ride the wave of a successful platform. Windows Phone 7 faces obvious challenges, but at least in theory Microsoft can make it work though integration with Windows and by offering developers a familiar set of tools, as I’ve noted here.

It is obvious that not all these platforms can succeed. If we accept that Apple and Android will occupy the top two rungs of the ladder when it comes to attracting app developers, that means HP webOS cannot do better than third; and I’d speculate that it will be some way lower down than that.

Frankly, if HP did not want to do Android, it should have stuck with Microsoft. But this is where the webOS news ties in with the announcement about he Personal Systems Group. HP fell out with Microsoft last year, as I noted in my 2010 retrospective. I said the two companies should make up; but it looks as if HP is more inclined to give up on PCs and pursue other lines that have better margins – like enterprise software.

I am puzzled though by the PSG announcement. It is always curious when a company announces that it might or might not do something, and the fact that HP says it is considering a spin-off of its PC division will be enough to makes its customers uncertain about the long-term future of HP PCs and some of them will buy elsewhere as a result. It would have paid HP either to say nothing, or to be more definite and aim for a speedy transition.

All this, on the eve of Microsoft’s detailed unveiling of Windows 8. What are the implications? More than I can put into a single post; but like Gartner’s reports of dramatically declining PC sales in Western Europe presented earlier this week, this is a sign of structural change in the industry.

Microsoft will be glad of one thing: it no longer has this major partner promoting a rival mobile and tablet operating system. Note that HP still is a major partner: even if it sells the Personal Systems Group, its server and services business will still be deeply entwined with Windows.

apple, microsoft, mobile, professional, windows

Reports of 19% decline in Western European PC market show structural change

4 Comments

As if we needed telling, a new Gartner report shows a steep decline in the PC market in Western Europe. A “PC” in this context includes Macs but excludes smartphones and what Gartner called “media tablets”, mostly Apple iPads. A few figures comparing shipments in the second quarter 2011 with the same period in 2010:

  • Total PC sales down 18.9%
  • Netbook sales down 53%
  • Desktop PCs down 15.4%
  • Apple up 0.5%
  • Consumer PC market down 27%

What interests me here is not so much the normal ebbing and flowing of the PC market, but structural change indicating a switch away from PCs and laptops to more lightweight mobile devices. I believe this is evidence of that, though the economy is weak and extending the life of existing PCs is an obvious saving both for businesses and consumers.

Still, the dramatic decline in netbook sales suggests that consumers really are buying the more expensive iPad in preference. If you believe that consumers are to some extent ahead of business in their technology choices, then we can expect more of the same in the corporate market too.

No doubt alarm bells have been ringing in Microsoft’s Redmond headquarters for some time. The company is betting on Windows 8 to rescue its operating system from permanent decline, which is why next month’s BUILD conference is so critical. Nevertheless, it will be a year or so before we get new-style tablets running Windows 8, so will it be too late? I tend to think not, just because of the strength of Microsoft in the business world and the importance of Windows for existing applications, but it is interesting to speculate.

One factor which you can argue either way, in terms of Microsoft’s prospects, is that non-iPad tablets seem to be struggling. HP’s TouchPad and RIM’s PlayBook seem to be selling poorly. Google Android looks more hopeful though overshadowed by legal concerns from multiple sources. In Australia and parts of Europe Apple has successfully barred or delayed sales of Samsung’s Galaxy Tab 10.1, though the latest news is that the ban has been lifted outside Germany.

See also: Fumbling tablet computing – Microsoft’s biggest mistake?

apple, microsoft, security, windows, windows 7

Parallels Desktop 6 for Mac: nice work but beware Windows security settings

I’ve just set up Parallels Desktop 6 on a Mac, in preparation for some development work. Installed Parallels, created a new virtual machine, and selected a Windows 7 Professional with SP1 CD image downloaded from Microsoft’s excellent MSDN subscription service.

The way this works is that you install the Parallels application and the create a new virtual machine, selecting a boot CD or image. Next, you have a dialog where you select whether or not you want an Express installation. It is checked by default. I left it checked and proceeded with the install.

image

The setup was delightfully smooth and I was soon running Windows on the Mac. I chose a “Like my PC” install so that Windows runs in a window. The alternative is to hide the virtual Windows desktop and simply to show Windows applications on the Mac desktop.

Everything seemed fine, but I was puzzled. Why was Windows not installing any updates? It turns out that the Express install disables this setting.

image

It also sets user account control to an insecure setting, where the approval dialog does not use the secure desktop.

image

The Parallels Express install also sets up an Administrator account with a blank password, so you log on automatically.

No anti-virus is installed, which is not surprising since Windows does not come with anti-virus software by default.

These choices make a remarkable difference to the user experience. Set up was a pleasure and I could get to work straight away, untroubled by prompts, updates or warnings.

Unfortunately Windows in this state is insecure, and I am surprised that Parallels sets this as the default. Disabling automatic updates is particularly dangerous, leaving users at the mercy of any security issues that have been discovered since the install CD was built.

In mitigation, the Parallels user guide advises that you set a password after installation – but who reads user guides?

If you uncheck the Express Install option, you get a normal Windows installation with Microsoft’s defaults.

These security settings are unlikely to matter if you do not connect your Windows virtual machine to the internet, or if you never use a web browser or other Internet-connected software such as email clients. If you do real work in Windows though, which might well include Windows Outlook since the Mac version is poor in comparison, then I suggest changing the settings so that Window updates properly, as well as installing anti-virus software such as the free Security Essentials.

apple, google, microsoft, mobile, professional, windows, windows 7

Microsoft financials: Office and server dominate as Windows falters

1 Comment

Microsoft has released its quarterly figures for January-March 2011. My at-a-glance summary is below.

Quarter ending June 30th 2011 vs quarter ending June 30th 2010, $millions

Segment Revenue Change Profit Change
Client (Windows + Live) 4740 -41 2943 -123
Server and Tools 4643 +494 1774 +214
Online 662 +94 -728 -40
Business (Office) 5777 +402 3618 +399
Entertainment and devices 1485 +341 32 +204

Business as usual? More or less, but there are a few points to note.

The figure that jumps out is the stunning performance of Office, which includes SharePoint and Exchange. Why is everyone buying Office 2010, when a document like the one I am typing now could be done just as well in Word 2.0 from 1991, or more plausibly the free OpenOffice?

The answer is the Microsoft has successfully transitioned many of its customers to using Office with SharePoint and Exchange, making it harder to stick with old versions and selling CALs (Client Access Licences) as well as the Office suite itself. This is highly profitable, though the aspect that puzzles me is that Office 365, which is cloud-hosted SharePoint and Exchange, is more cost-effective for the customer since it includes server software, CALs and in some cases the Office client for a commodity-priced subscription.

In other words, I find it hard to see how Microsoft can remain equally profitable if a significant proportion of its customers switch to Office 365. The company may be depending on its ability to upsell those customers to further online services; or perhaps it has not fully thought this through and has set Office 365 pricing at what it needs to be in order to compete with Google.

Fortunately for Microsoft, there is enough doubt concerning the safety of cloud services to sustain continued strong sales of on-premise solutions.

Second notable thing: Windows is in decline. The reason: it is losing market share to Apple and to Google Android. Netbook sales are down 41% according to the release, and I would guess that those sales have mostly gone to Apple iPad and Android tablets rather than to Windows notebooks.

Will Windows 8 reverse the decline? Speculation of course, but it will not repeat the success of Windows 7. In fact, my guess is that Windows 8 will be a hard sell to enterprises which have finally been persuaded to migrate from Windows XP. They are settling down for another five years of stability. Windows 7 was a consolidation release, just the sort of thing enterprises like. Windows 8 will be a revolution release, with most of the interest focused on what it can do in mobile and tablets. If it does succeed, it will do so slowly; there will be no rush to upgrade from 7 other than from the usual early adopters. It may improve sales in the consumer market, but neither Mac nor iPad nor Android is going away.

That leads on to mobile, the figures for which are buried under a pile of Xbox consoles. A good quarter for Xbox, though note how poor the margins are compared to those for Office or Windows.

Finally, the online money drain continues. Note that this is Bing and online advertising, not Azure or Office 365. Microsoft must feel that it the strategic value of these online services is worth the cost, particularly since they tie into mobile and the ecosystem which Nokia is depending on for a reversal of its fortunes. Given that the company has money to burn, there may actually be some sense in that; though for a segment to make such large and consistent losses over a long period has to be a concern.

virtualization, windows

When remote desktop does not connect: changing Windows DNS setttings remotely

8 Comments

This was an annoying. I tried to remote desktop into my Hyper-V Server today and could not. The message:

Remote Desktop cannot verify the identity of the remote computer because there is a time or date difference between your computer and the remote computer.

image

Hmm. I typed:

net time \\myhypervbox

and it was the same as the time on my desktop.

A Google or two later, and I discovered that this message is caused by an incorrect DNS setting on the target computer. That made sense, since a DNS server died recently. I had changed the settings on the VMs but forgot to do it on the Hyper-V host. Thank you Microsoft for a misleading error message.

Of course my Hyper-V server has no screen attached. So how to change the DNS setting? Umm, not by remote desktop.

I fiddled with netsh for a bit. This looks promising, but it was not playing ball. I tried to list the interfaces and it gave an error saying it could not do so when remote access is not running. Further, I have two network cards in this machine, and Hyper-V creates virtual interfaces, and I was not sure what the correct network interface name was.

Next up was the registry editor. Run Regedit, choose File – Connect Network Registry. That worked. I went to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tcpip\Parameters\Interfaces

This lists the network interfaces as GUIDs. I went through them one by one, and in the two cases where the NameServer entry was set to the dead server, I changed it to the new one.

There is also an entry for NameServer in the top level Parameters key but this was blank and I left it alone.

If you want to know what all these keys do, there is a guide here.

I rebooted the machine, remotely of course:

shutdown /m \\myhypervbox /r

and when it restarted remote desktop worked again.

.net, cloud computing, microsoft, professional, software development, visual studio, web authoring, windows

Hands on debugging an Azure application – what to do when it works locally but not in the cloud

I have been writing a Facebook application hosted on Microsoft Azure. I hit a problem where my application worked fine on the local development fabric, but failed when deployed to Azure. The application was not actually crashing; it just did not work as expected. Specifically, either the Facebook authentication or the ASP.NET Forms Authentication was failing; when I tried to log on, the log on failed.

This scenario, where the app works locally but not on Azure, is potentially a bad one because you do not have the luxury of breakpoints and variable inspection. There are several approaches. You can have the application write a log, which you could download or view by using Remote Desktop to the Azure instance. You can have the application output debug messages to HTML. Or you can use IntelliTrace.

I tried IntelliTrace. It is easy to set up, just check the box when deploying.

image

Once deployed, I tried the application. Clicked the Log On button, after which the screen flashed but still asked me to Log On. The log on had failed.

image

I closed the app, opened Server Explorer in Visual Studio, drilled down into the Windows Azure Compute node and selected View IntelliTrace Logs.

image

The logs took a few minutes to download. Then you can view is the IntelliTrace log summary, which includes a list of exceptions. You can double-click an exception to start an IntelliTrace debug session.

image

Useful, but I still could not figure out what was wrong. I also found that IntelliTrace did not show the values for local variables in its debug sessions, though it does show exceptions in detail.

Now, if you really want to debug and trace an Azure application you had better read this MSDN article which explains how to create custom debugging and trace agents and write logs to Azure storage. That seems like a lot of work, so I resorted to the old technique of writing messages to HTML.

At this point I should mention something you must do in order to debug on Azure and remain sane.  This is to enable WebDeploy:

image

It is not that hard to set up, though you do need to enable Remote Desktop which means a trip to the Azure management portal. In my case I am behind a firewall so I needed to configure Web Deploy to use the standard SSL port. All is explained here.

Why use Web Deploy? Well, normally when you deploy to Azure the service actually builds, copies and spins up a new virtual machine image for your app. That process is fundamental to Azure’s design and means there are always at least two copies of the VM in existence. It is also slow, so if you are making changes to an app, deploying, and then testing, you will spend most of your time waiting for Azure.

Web Deploy, by contrast, writes to your existing instance, so it is many times quicker. Note that once you have your app working, it is essential to deploy it properly, since Azure might revert your app to the last VM you created.

With Web Deploy enabled I got back to work. I discovered that FormsAuthentication.SetAuthCookie was not working. The odd thing being, it worked locally, and it had worked in a previous version deployed to Azure.

Then I began to figure it out. My app runs in a Facebook canvas. Since the app is served from a different site than Facebook, cookies may be rejected. When I ran the app locally, the app was in a different IE security zone, so different rules applied.

But why had it worked before? I realised that when it worked before I had used Google Chrome. That was it. IE worked locally; but only Chrome worked when deployed.

I have given up trying to fix the specific problem for the moment. I have dug into it a little, and discovered that cookie handling in a Facebook canvas with IE is a long-standing problem, and that the Facebook C# SDK may have bugs in this area. It is not essential for my sample; I have found I can get by with the Facebook session. To get the user ID, for example:

FacebookWebContext.Current.Session.UserId

The time has not been wasted though as I have learned a bit about Azure debugging. I was also amused to discover that my Azure VM has activation problems:

image

.net, azure, cloud computing, microsoft, professional, sharepoint, software development, visual studio, web authoring, windows

Microsoft Office 365: the detail and the developer story

1 Comment

I attended the UK launch of Office 365 yesterday and found it a puzzling affair. The company chose to focus on small businesses, and what we got was several examples of customers who had discovered the advantages of storing documents online. We were even shown a live video conference with a jerky, embarrassing webcam stream adding zero business value and reminding me of NetMeeting back in 1995 – which by the way was a rather cool product. Most of what we saw could have been done equally well in Google Apps, except for a demo of the vile SharePoint Workspace for offline editing of a shared document, though if you were paying attention you could see that the presenter was not really offline at all.

There seems to be a large amount of point-missing going on.

There is also a common misconception that Office 365 is “Office in the cloud”, based on Office Web Apps. Although Office Web Apps is an interesting and occasionally useful feature, it is well down the list of what matters in Office 365. It is more accurate to say that Office 365 is for those who do not want to edit documents in the browser.

I am guessing that Microsoft’s focus on small businesses is partly a political matter. Microsoft has to offer an enterprise story and it does, with four enterprise plans, but it is a sensitive matter considering Microsoft’s relationship with partners, who get to sell less hardware and will make less money installing and maintaining complex server applications like Exchange and SharePoint. The, umm, messaging at the Worldwide Partner Conference next month is something I will be watching with interest.

The main point of Office 365 is a simple one: that instead of running Exchange and SharePoint yourself, or with a partner, you use these products on a multi-tenant basis in Microsoft’s cloud. This has been possible for some time with BPOS (Business Productivity Online Suite), but with Office 365 the products are updated to the latest 2010 versions and the marketing has stepped up a gear.

I was glad to attend yesterday’s event though, because I got to talk with Microsoft’s Simon May and Jo Carpenter after the briefing, and they answered some of my questions.

The first was: what is really in Office 365, in terms of detailed features? You can get this information here, in the Service Description documents for the various components. If you are wondering what features of on-premise SharePoint are not available in the Office 365 version, for example, this is where you can find out. There is also a Support Service Description that sets out exactly what support is available, including response time objectives. Reading these documents is also a reminder of how deep these products are, especially SharePoint which is a programmable platform with a wide range of services.

That leads on to my second question: what is the developer story in Office 365? SharePoint is build on ASP.NET, and you can code SharePoint applications in Visual Studio and deploy them to Office 365. Not all the services available in on-premise SharePoint are in the online version, but there is a decent subset. Microsoft has a Sharepoint Online for Office 365 Developer Guide with more details.

Now start joining the dots with technologies like Active Directory Federation Services – single sign-on to Office 365 using on-premise Active Directory – and Windows Azure which offers hosted SQL Server and App Fabric middleware. What about using Office 365 not only for documents and email, but also as a portal for cloud-hosted enterprise applications?

That makes sense to me, though there are still limitations. Here is a thread where someone asks:

Does some know if it is possible to make a database connection with Office365, SharePoint (Designer) and SQL Azure database ?

and the answer from Microsoft’s Mark Kashman on the SharePoint team:

You cannot do this via SharePoint Designer today. What you can do is to create a Silverlight or javaScript client application that calls out to SQL Azure.

In the near future, we are designing a way to make these connections using the base SharePoint technology called BCS (Business Connectivity Services) where then you could develop a service to service to SQL Azure.

If you cannot wait, check out the Cloud Connector for SharePoint 2010 from Layer 2 GmbH.

It seems obvious that Office 365 and Azure together have potential as a developer platform.

What about third-party applications and extensions for Office 365? This is another thing that Microsoft did not talk about yesterday; but it seems to me that there is potential here as well. It is not well integrated, but you can search Microsoft Pinpoint for Office 365 applications and get some results. If Office 365 succeeds, and I think it will, there is an opportunity for developers here.

internet, javascript, software development, windows

Microsoft partners with Joyent to bring node.js server-side JavaScript to Windows

Microsoft will port node.js to Windows in partnership with Joyent. This will work on Windows Azure as well as other versions of Windows back to Server 2003.

But can you not already run node.js on Windows? This is possible using Cygwin and instructions are here. Cygwin makes Windows more like Linux by providing familiar Linux tools and a Linux API layer. Cygwin is a great tool, though it can be an awkward dependency, but a true Windows port should be higher performance and more robust, particularly as the intention is to use the IOCP API. See here for an explanation of IOCP:

With IOCP, you don’t need to supply a completion function, wait on an event handle to signal, or poll the status of the overlapped operation. Once you create the IOCP and add your overlapped socket handle to the IOCP, you can start the overlapped operation by using any of the I/O APIs mentioned above (except recv, recvfrom, send, or sendto). You will have your worker thread block on GetQueuedCompletionStatus API waiting for an I/O completion packet. When an overlapped I/O completes, an I/O completion packet arrives at the IOCP and GetQueuedCompletionStatus returns.

IOCP is the Windows NT Operating System support for writing a scalable, high throughput server using very simple threading and blocking code on overlapped I/O operations. Thus there can be a significant performance advantage of using overlapped socket I/O with Windows NT IOCPs.

I was impressed by node.js when I saw it presented by author Ryan Dahl at a pre-Dreamforce event last year. Since then it has become better known. This is an interesting move, particularly in the context of an greater focus on JavaScript in the forthcoming version of Windows known as Windows 8. End to end JavaScript for your next-generation real time networking applications?