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Even with the wide variety (okay, five) of system sounds that can be played, sometimes additional sounds might be required. For these times, the SoundPlayer class (also part of the System.Media namespace) can be used. First of all, the SoundPlayer class is limited in that only WAV files can be played. But within that limitation, the SoundPlayer class exposes a number of useful features. In terms of specifying the location of the WAV file, the SoundLocation property is used. This property can be assigned a file path, a Universal Naming Convention (UNC) path, or even a Uniform Resource Locator (URL). Given the fact that the sound could be located on a URL (that is, on a remote Web site), the speed at which the file is available might have an impact on how the sound is delivered. To accommodate this, sound can be played in a number of ways. If the location of the sound is close to the application playing the sound, then the Play method on the SoundPlayer class can be used. This simply loads the WAV file and plays it. One of the convenient (and unexpected) features of the Play method is that although it is synchronous, it does not block the current thread. Instead, a separate thread is created and the file is loaded and played on that thread. This keeps a large or slowly loading WAV file from blocking the application, which is an important consideration if the SoundPlayer were to be invoked from within a Windows Forms application because in that case blocking the main thread would result in the application appearing to hang.

Gating role A role specified when enabling CDC that is used to limit access to the change data. geography data type Used to store ellipsoidal (round-earth) data, such as latitude and longitude coordinates. geometry data type Used to store planar data based on Euclidean space such as points, lines, and polygons.

Hybrid images are similar to thick images in that they install all of the applications and other software components the workstation needs, but like thin images, they do not include all of those other components as part of the image file. Instead, they access the additional components from a share on the network. As a result, hybrid images share most of the same advantages of thin images. These are some of the advantages of hybrid images:

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Lesson 4: Creating Measure Groups and Measures . . . . . . . . . . . . . . . . . .198 Creating a Measure Group 198 Adding and Configuring Measures 202 Practice: Adding Measure Groups and Measures 203 Case Scenario: Building an SSAS Solution as a Prototype . . . . . . . . . . . . .207 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207

In the What do you want Windows to do area, click Play audio CD using Windows Media Player. Windows Media Player opens and the CD starts playing.

To add files to Windows XP's distribution folder, you start by making a copy of the CD's i386 folder on your hard disk because you can't modify the CD. You don't need the rest of the files or folders on the CD just the i386 folder. In a corporate deployment, you'll eventually replicate the customized i386 folder on distribution servers and then deploy the command that installs Windows XP from them. If you're a power user, you'll likely burn a custom CD that contains your files. You add files to the distribution folder by creating the structure shown in Figure 12 1.

For more detailed information about the requirements of building a Web application that uses Passport, you can download and review the free Passport software development kit from MSDN on the Microsoft Web site at http://msdn.microsoft.com/downloads/list /websrvpass.asp.

Microsoft.Web.Services3.Addressing;

TestSecurity()

Wait-Until-Done Model The wait-until-done model allows you to start the asynchronous call and perform other work. Once the other work is done, you can attempt to end the call and it will block until the asynchronous call is complete. The following code snippet provides an example:

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Keyloggers are small devices that are attached between the end of a keyboard cable and the keyboard port on the computer. They come in USB and PS2 varieties. They record each keystroke entered. The attacker attaches the keylogger, hopes that the keylogger is not noticed, and removes it at a later stage. Unless you check the back of your computer each time you come back to it, you won t notice whether a keylogger has been installed.