It’s been a while since I blogged, so here I’m back again.

I’m using a lot of Skype these days. We’ve got a business account with them, having a Dutch phone number which can be used to call me here in Chile. It’s customer friendly and cheap for us. When calling to NL, I also use Skype to get in touch with my customers, friends & family and this all works fine. Problem is though that sometimes call echo screws up the conversation.

When taking a look at the pages on Skype, they say that I should use a headset (which I do), and have a good quality Internet connection, which I do. A fast PC might help, which I got, so there’s nothing more I can do on my side of the line to make things better. When I wasn’t using Skype, long distance calls using regular phone lines also were having echo problems. (And when I say “Long distance”, I’m talking 10.000 miles intercontinental phone calls.) So this isn’t related to Skype specifically, but more to those long distances that need to be covered (probably most of which goes over the Internet.)

Even though there’s sometimes echo, the call quality is good, sometimes even excellent. And when you remind people that they are talking with the other side of the planet, that also helps. Still, there’s room for improvement and I hope that new technologies will catch up and improve the overall experience in long distance communication.

Time to make another call… ;)

Some people think that December 21st, 2012 will be some kind of doomsday...

I'll post a folow-up on christmas 2012, which I'm sure will be a good laugh :)

It’s been some time since I last used my notebook. I’ve made a back-up, wiped it clean and installed Windows 7 on it. Office 2007 and Visual Studio 2010 (Beta 2) make it complete.

The screen of that notebook is broken, but my associate has ordered a new one. Once I’ll have it in NL, we’ll install a new screen and I’m (hopefully) good to go for another few years.

Since Visual Studio 2010 Beta 2 comes with a go-live license, I’ll be making the change soon…

Microsoft always does a good job on those splash screens, don’t they :)

We started here to migrate our workstations to Windows 7 RTM since the day the images were available via MSDN. Now I’ve done the last one, the notebook of my wife, and we’re having all our computers on RTM right now.

I’ve worked with Windows 7 since the Beta, and now I have my system configured with it, I must say I’m very happy with it. My computer is fast, responsive, even with all the (almost) 7 million pixels I’m looking at every day. I’ve made some adjustments to the defaults, which makes Windows 7 even better to work with (for me at least.)

This is a typical snapshot of my taskbar, and as you can see, it’s height is a bit different. I did this by creating a folder, which holds the shortcuts in the upper row, and only the programs I use most frequently are pinned to the taskbar itself. This way I can easily start an application that I don’t have pinned and I still can use the jump lists for the software that provides this feature.

My biggest disappointment of Windows 7 is Aero Snap, so I’ve disabled this. On the multi-monitor area there’s still a lot of room for improvement in the Windows operating system. Windows Virtual PC for Windows 7 is nice, just too bad that seamless apps on multimon has (very) limited support.

The installation works fine, driver problems seem to be getting slowly a thing of the past and compatibility with Vista Apps & Drivers is also perfect. Also the other (somewhat less powerful) PCs and even my wife’s Aspire One, have no problem with Windows 7.

My advice: Move to Windows 7 as soon as you can, there’s no need to wait for SP1.

If you have a bunch of TFS builds that get a new home, it is always nice to let TFS know those files have been moved. But sadly, in the documentation there’s not much to find about this, nor is there any UI interface that lets you make this kind of change.

So I asked a question on the build forums, and Hongye Sun of Microsoft told me the best way to go at this, is use the Team Build APIs.

I’ve created a simple MoveBuild command line tool that allows you to move all the known builds from an old drop location to a new one, across all TFS projects.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using Microsoft.TeamFoundation.Build.Client;
using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.Server;

namespace MoveBuild
{
  class Program
  {
    static void Main(string[] args)
    {
      if (args.Length < 3)
      {
        ShowUsage();
        return;
      }

      try
      {
        string tfsServer = args[0];
        string sourceDir = args[1];
        string targetDir = args[2];

        bool commit = args.Length == 4 && String.Equals(args[3], "/Commit", StringComparison.InvariantCultureIgnoreCase);

        TeamFoundationServer tfs = TeamFoundationServerFactory.GetServer(tfsServer);
        ICommonStructureService css = (ICommonStructureService)tfs.GetService(typeof(ICommonStructureService));
        foreach (ProjectInfo item in css.ListAllProjects())
        {
          MoveBuilds(tfs, item.Name, sourceDir, targetDir, commit);
        }

      }
      catch (Exception ex)
      {
        if (!Debugger.IsAttached)
          Console.WriteLine(ex.ToString());
        else
          throw;
      }

    }

    private static void MoveBuilds(TeamFoundationServer server, string teamProject, string sourceDir, string targetDir, bool commit)
    {

      int recordCount = 0;
      IBuildServer buildServer = (IBuildServer)server.GetService(typeof(IBuildServer));
      foreach (IBuildDetail item in buildServer.QueryBuilds(teamProject))
      {
        bool isMatch = item.DropLocation.StartsWith(sourceDir, StringComparison.InvariantCultureIgnoreCase);
        if (!isMatch)
          continue;
        recordCount++;
        //Console.ForegroundColor = isMatch ? ConsoleColor.Green: ConsoleColor.Red;
        //if (!isMatch)
        //  Console.Write("SKIPPED: ");
        Console.ForegroundColor = ConsoleColor.Green;
        Console.WriteLine(item.BuildNumber);
        
        Console.ForegroundColor = ConsoleColor.Gray;
        StringBuilder newDropLocation = new StringBuilder();
        newDropLocation.Append(targetDir);
        if (item.DropLocation.Length > sourceDir.Length)
          newDropLocation.Append(item.DropLocation.Substring(sourceDir.Length));

        StringBuilder newLogLocation = new StringBuilder();
        newLogLocation.Append(targetDir);
        if (item.LogLocation.Length > sourceDir.Length)
          newLogLocation.Append(item.LogLocation.Substring(sourceDir.Length));

        Console.WriteLine("Old location: {0}", item.DropLocation);
        Console.WriteLine("New Location: {0}", newDropLocation);
        Console.WriteLine("Old log location: {0}", item.LogLocation);
        Console.WriteLine("New log location: {0}", newLogLocation);

        if (commit)
        {
          item.LogLocation = newLogLocation.ToString();
          item.DropLocation = newDropLocation.ToString();
          item.Save();
        }

      }
      Console.ForegroundColor = ConsoleColor.Gray;
    }

    private static void ShowUsage()
    {
      Console.WriteLine("MoveBuild - Usage");
      Console.WriteLine("MoveBuild <TFS URL> <SourceFolderPattern> <DestinationFolder> [/Commit]");
      Console.WriteLine();
      Console.WriteLine(@"Example: MoveBuild http://mytfsserver:port \\OldServer\OldShare \\NewServer\NewShare");
      Console.WriteLine(@"This will move all builds which have a drop location starting with \\OldServer\OldShare to \\NewServer\NewShare");
      Console.WriteLine();
      Console.WriteLine("If you specify /Commit the changes will be made to the database, if not, you only see a list of builds that would have been changed by this program");
    }

  }

}

To get this to build you need to:

• Add a refference to the following Microsoft.TeamFoundation libraries (which are in %ProgramFiles%\Microsoft Visual Studio 9.0\Common\IDE\PrivateAssemblies
  • Microsoft.TeamFoundation.dll
  • Microsoft.TeamFoundation.Build.dll
  • Microsoft.TeamFoundation.Build.Common.dll
  • Microsoft.TeamFoundation.Build.Client.dll
  • Microsoft.TeamFoundation.Client.dll
  • Microsoft.TeamFoundation.Common.dll
• Set your project’s properties to build for platform x86 if you’re developing on a x64 platform, otherwise you get a BadImageFormatException when loading these references.

If you need to configure a site to only allow SSL connections, that’s easy. But if you want to redirect URLs to the SSL url when they are entering with a normal URL typed in the browser, or linked to, that’s not an option you’ll find in the management tools… or is it?

As posted here: http://tech.mikeal.com/blog1.php?blog=1&title=ssl-redirects-in-iis7-using-403-4-error--302&disp=single&more=1&c=1&tb=1&pb=1 it is possible to redirect those requests to a specific URL, using the “error pages” feature. The status code to redirect is “403.4” and the rest is easy.

Because some things went wrong here in the household, like TL tubes blowing out and other electrical problems, I didn’t have much time to do some real work on my PC. But, this weekend that was different, because now everything is working like usual again. I replaced 3 TL lamps in it’s entirely (not just the tube), and the electrical problems are solved.

So, it was time to get to work on my nice PC. I have a quad core AMD Black Edition 3 Ghz processor, 8 GB memory, a 1000W PSU and 2 nice video cards (ATI Radeon HD 4870), but I could only install one of these cards because the SATA cables were in the way. The ECS board therefore didn’t fulfill my requirements and needed to be replaced. Since this is all still an AM2 Chipset, I needed to be quick. AM3 comes out and before you know it, you can’t get it anywhere anymore.

So here we are: One DFI LanParty board

As you can see on the picture, this board has the advantage that the SATA cables can be plugged into the side, so that does not conflict with large video cards, like this one:

Now you may ask: why 2 of these beasts? I got 3 big 26” HD monitors here on my desk. (Each having a resolution of 1920 * 1200) This alone is very cool to work with.

Putting it all together

The task was a hefty one. Each video card needed 2 PCI-E Power connectors attached, so those were 4 cables. Then came the motherboard, with the standard power connector (the big one), and 3 aux connectors. (2 via the good’ol FDD connectors.) The audio connector for the front part is a bit in a strange place, that’s between the 2 PCE-slots where the gap is. Now came a nasty one, I had to get the proc out of the motherboard. Once I carefully lifted up the heat sink, which didn’t go really easy, I noticed the processor was attached to it. That stuff of AMD that they use on their heat sinks is way to adhesive! I got the processor loose using the hairdryer trick. You warm up the heatsink with a hairdryer, once this is warm you can slowly but surely move the processor off.

The rest was all simple, and once the box was closed, it was time to put it back in place.

Let’s run again

This was the first time I used the 2 video cards together, and I must say: "I’m impressed, big time!” Video performance is funtastic, the motherboard does also a very good job. Since this is an overclocker’s board, the BIOS is not something for the faint hearted. Do your homework or don’t fiddle with it too much.

All together this is now a rig that will almost do anything you throw at it. The only thing I’m missing is water cooling ;-)

If you want to build something like this, make sure you get a good PSU. For 2 of these video cards, a 1000W Modular PSU is highly recommended.

A simple way to get a hash code from a file:

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace Sha1
{
  class Program
  {
    static void Main(string[] args)
    {
      if (args.Length != 1)
      {
        Console.WriteLine("Usage: SHA1 <filename>");
        return;
      }

      string fileName = args[0];
      if (!File.Exists(fileName))
      {
        Console.WriteLine("File not found: {0}", fileName);
        return;
      }

      using (Stream s = File.OpenRead(fileName))
      {
        SHA1Managed sha = new SHA1Managed();
        byte[] result = sha.ComputeHash(s);
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < result.Length; i++)
        {
          sb.AppendFormat("{0:x2}", result[i]);
        }
        Console.WriteLine("SHA1 Hash: {0}", sb);
      }

    }
  }
}

During some testing, I needed a tool that could simply compress a file to GZip format and back again. I decided that other people might have a similar need, so here’s the code to make it work.

using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Compression;
using System.IO;

namespace GZip
{
  class Program
  {
    static void Main(string[] args)
    {
      CompressionMode mode = CompressionMode.Compress;

      if (args.Length != 3)
      {
        ShowUsage();
        return;
      }

      string command = args[0].ToLower();
      switch (command)
      {
        case "compress":
          mode = CompressionMode.Compress;
          break;
        case "decompress":
          mode = CompressionMode.Decompress;
          break;
        default:
          ShowUsage();
          return;
      }

      Stream sourceStream = File.OpenRead(args[1]);
      Stream targetStream = File.OpenWrite(args[2]);

      switch (mode)
      {
        case CompressionMode.Compress:
          using (GZipStream gZip = new GZipStream(targetStream, CompressionMode.Compress))
          {
            Pump(sourceStream, gZip);
          }

          break;
        case CompressionMode.Decompress:
          using (GZipStream gZip = new GZipStream(sourceStream, CompressionMode.Decompress))
          {
            Pump(gZip, targetStream);
          }
          break;
      }
      sourceStream.Close();
      targetStream.Close();

    }

    private static void Pump(Stream source, Stream target)
    {
      byte[] buffer = new byte[65536];
      int count;
      while ((count = source.Read(buffer, 0, buffer.Length)) > 0)
      {
        target.Write(buffer, 0, count);
      }

    }

    private static void ShowUsage()
    {
      Console.WriteLine("Usage: GZip compress | decompress   sourceFileName targetFileName");
    }
  }
}

It’s always fun to play with .Net, the HTTP Listener class in .Net 2.0 makes it really easy. With this little block of code you can setup a very simple (multithreaded) web server…

private static System.Threading.AutoResetEvent listenForNextRequest = new System.Threading.AutoResetEvent(false);

protected Server() 
{
  _httpListener = new HttpListener();
}

private HttpListener _httpListener;

public string Prefix { get; set; }
public void Start()
{
  if (String.IsNullOrEmpty(Prefix))
    throw new InvalidOperationException("No prefix has been specified");
  _httpListener.Prefixes.Clear();
  _httpListener.Prefixes.Add(Prefix);
  _httpListener.Start();
  System.Threading.ThreadPool.QueueUserWorkItem(Listen);

}

internal void Stop()
{
  _httpListener.Stop();
  IsRunning = false;
}

public bool IsRunning { get; private set; }

private void ListenerCallback(IAsyncResult result)
{
  HttpListener listener = result.AsyncState as HttpListener;
  HttpListenerContext context = null;

  if (listener == null)
    // Nevermind
    return;

  try
  {
    context = listener.EndGetContext(result);
  }
  catch (Exception ex)
  {
    System.Diagnostics.Debug.WriteLine(ex.ToString());
    return;
  }
  finally
  {
    listenForNextRequest.Set();
  }
  if (context == null)
    return;
  ProcessRequest(context);
}

// Loop here to begin processing of new requests.
private void Listen(object state)
{
  while (_httpListener.IsListening)
  {
    _httpListener.BeginGetContext(new AsyncCallback(ListenerCallback), _httpListener);
    listenForNextRequest.WaitOne();
  }
}

protected abstract void ProcessRequest(HttpListenerContext context);

Always nice to have ;)

Today is the day, Windows 7 and it’s big brother (Server 2008 R2) has both been released to manufacturing. (Which means: Let’s copy a few million DVDs)

See the following links for more info:

• http://windowsteamblog.com/blogs/windows7/archive/2009/07/22/windows-7-has-been-released-to-manufacturing.aspx
• http://arstechnica.com/microsoft/news/2009/07/microsoft-windows-7-is-done-on-its-way-to-manufacturers.ars
• http://blogs.zdnet.com/microsoft/?p=3445

My congrats to the Windows team, they really did an outstanding job!

Hurray :)

When I read this I really had a good laugh…

Code Deodorants for Code Smells
Code Smells have become an established way of talking about indications that things may be wrong with your code. Nick Harrison extends the idea with the concept of 'code deodorants' and shows how the code smell of 'inappropriate intimacy' can be cured by means of the code deodorant, called 'separation by interface'.

- Snif – No, I don’t smell anything here… Or as my lovely would wife put it:

“That newsletter stinks” :o)

LOL :)

Microsoft Dynamics is at it again: Permanent Link to Cute Microsoft Windows toaster

A Windows Toast anyone?