I have gotten the following exception a couple of times:

Service 'Translator' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element.

There are a number of things that could potentially cause this exception but the one that has gotten me a couple of times is making sure the name attribute of the service element in the .config contains the fully qualified class name. So for example if I have the following service:

namespace BabelFish.ServiceHost.Web
{
    public class Translator : BabelFish.Services.Translator
    {
    }
}

The service name should be as follows (in bold):

In order to configure WCF 3.0 to run under ASP.NET you need to run the installer (ServiceModelReg.exe) in the WFC 3.0 Framework folder (<system drive>\<windows folder>\Microsoft.NET\Framework\v3.0\Windows Communication Foundation) with the /i parameter.

I have been wanting to dig into F# for quite some time and finally got an opportunity. My first stab at it implements the calculation of kinetic energy given a weight in lbs, speed in mph and output in kJ. Pretty basic, but ya gotta start some where right? :)

KineticEnergy.zip (.95 KB)

// Get info from the user
do Printf.printf "Enter the weight (LBS): "
let m = read_line()
do Printf.printf "Enter the velocity (MPH): "
let mph = read_line()

// Pound to kilogram conversion
let kg lbs = lbs / 2.2

// Miles/h to Meters/s conversion
let mps mph = (((mph * 1.6) * 1000.0) / 60.0) /60.0

// Kinetic energy calculation
let Ek m v = (0.5 * m * (v * v)) / 1000.0

// Show me the money
do Printf.printf "\nEk = %fkJ\n\n" (Ek (kg (float_of_string m)) (mps (float_of_string mph)))

// Wait! Let me see the answer...
do Printf.printf "Press enter to continue..."
let x = read_line()

Below is a simple XML/XSL that displays the period table. The XML contains a number of properties not displayed by the XSL so it can be expanded.

Elements.xml (119.87 KB)
PeriodicTable.xsl (3.73 KB)

Wow! And I thought MIT had a great lecture selection under OCW... Berkeley has an archive of lectures on a wide array of subjects in audio and video format. The webcast home page can be found here.

I love WiX, but I hate that you have to specify the id's and short filenames! This really slows you down when you have a lot of files to add. I have read that these may be optional in v3 and auto generated by the compiler. Until then you could use this Visual Studio addin that that allows you to randomly generate and insert id's and short filenames as well as insert some common tags with the aformentioned attributes randomly filled in. n-joy!

Visual Studio 2005

Installer: WiXHelperAddin.EXE (217.21 KB)
Source: WiXHelperSource.zip (258.91 KB)

Visual Studio 2008

Installer: WiXHelperAddin2008.EXE (217 KB)
Source: WiXHelperSource2008.zip (63.89 KB)

PS: Also, check out the GUID inserter (Which also appears in the image below...); this is very helpful for WiX development!

I do this often enough to forget how to do it (And where I've seen how to do it!). Rick Strahl has a nice post about adding icons to custom Visual Studio addins; the about box icon and the icons that appear in menus.

http://www.west-wind.com/WebLog/posts/3862.aspx

Here is a simple method to invert an HTML color:

private static string InvertHTMLColor(string htmlColor)

{

htmlColor = htmlColor.Replace("#", string.Empty).Trim();

if (string.IsNullOrEmpty(htmlColor) || htmlColor.Length != 6)

     throw new ArgumentException("Invalid HTML color.");

return string.Format("#{0}{1}{2}",

     InvertChannel(htmlColor.Substring(0, 2)),

     InvertChannel(htmlColor.Substring(2, 2)),

     InvertChannel(htmlColor.Substring(4, 2)));

}

private static string InvertChannel(string channel)

{

channel = channel.Trim();

if (string.IsNullOrEmpty(channel) || channel.Length != 2)

     throw new ArgumentException("Invalid color channel.");

int a = int.Parse(channel.Substring(0, 1), System.Globalization.NumberStyles.HexNumber);

int b = int.Parse(channel.Substring(1, 1), System.Globalization.NumberStyles.HexNumber);

return (255 - ((16 * a) + b)).ToString("X");

}

Attached is the source for a simple TCP proxy server. I whipped it up pretty quickly so it probably needs some refactoring if you plan to use it in production. The server class is loosely based on the Cassini implementation. You can set the listen port and forward host/port in the app config:

<configuration>

    <appSettings>

        <add key="listenPort" value="443"/>

        <add key="forwardHost" value="wush.net"/>

        <add key="forwardPort" value="443"/>

    </appSettings>

</configuration>