qr code generator c# mvc Case Scenario: Installing and Configuring a New Application in C#

Print QR Code 2d barcode in C# Case Scenario: Installing and Configuring a New Application

In the following case scenario, you will apply what you ve learned about how to use application domains and services. You can find answers to these questions in the Answers section at the end of this book. You are a developer for company where you re working on a large enterprise application that, after it is deployed, must minimize downtime. Your specifications have many requirements. The first requirement is that user settings, such as positions of windows, are saved. The next requirement is that all settings except secure ones need to be human readable and editable. If your program doesn t contain an editor, one needs to be provided. The application needs to have an installer, and in case of failure, it needs to be rolled back.

Following is a list of company personnel interviewed and their statements:

IT Manager The last developer who worked on this program thought my com-

puter s registries were his own. Everything in the application read and wrote from the registry. This was totally unacceptable. After this deployment, I m using group policy to lock down permissions, and if your application can t run without writing to my registry, we won t be using it. Also, it better have a good installer and if the install fails, undo itself.

Programming Manager I want everything configurable. I don t want to hear any-

thing about We hard-coded those settings in there. If there s a setting for it, I want it configurable because redeploying has been a major problem in the past.

Answer the following questions for your manager. 1. If the registry can t be used, what should be used instead 2. Does anything else need to be handled in the installation

To help you successfully master the objectives covered in this chapter, complete the following tasks.

Create a Unit of Isolation for Common Language Runtime within a .NET Framework Application by Using Application Domains

For this task, you should complete at least Practices 1 and 2. If you want a better understanding of how the System.Configuration namespace works, complete Practices 3 and 4 as well. If you understand .NET remoting well enough, complete Practice 5.

Practice 4 Create an installer for your application that writes values to the regis-

try or sets a desktop shortcut. Uninstall the application, and verify that everything is as it should be.

For this task, you should complete at least Practice 1. If you want a better understanding of the challenges involved with implementing services in the real world, complete Practices 2 and 3 as well.

use the Installutil tool to install the service. After you have verified that the service works properly, use the Installutil tool to uninstall it.

Practice 2 Create a service that performs the tasks described in the case scenario. Practice 3 Modify the service you created in the Lab section of Lesson 3 so

that it runs using the LocalService account. Identify the privileges that the LocalService account requires to enable the service to function correctly. Create a new user account with only the necessary privileges, and configure the service to run under the new user account.

The practice tests on this book s companion CD offer many options. For example, you can test yourself on just the content covered in this chapter, or you can test yourself on all the 70-536 certification exam content. You can set up the test so that it closely simulates the experience of taking a certification exam, or you can set it up in study mode so that you can look at the correct answers and explanations after you answer each question.