Review in .NET framework

Encoding ANSI/AIM Code 39 in .NET framework Review

To further practice and reinforce the skills you learned in this chapter, you can perform the following tasks:

Review the chapter summary. Review the list of key terms introduced in this chapter. Complete the case scenarios. These scenarios set up real-world situations involving the topics of this chapter and ask you to create a solution. Complete the suggested practices. Take a practice test.

Summary

UAC ensures that user accounts runs without elevated privileges unless the task the user wants to carry out requires such privileges. By default, administrators grant permission for this to happen while standard users need to supply the credentials of an administrator account. UAC does not apply to the built-in Administrator account by default. Windows Vista permits legacy software that attempts to write to protected areas by virtualizing these areas in the user s profile. You can use the Program Compatibility Wizard to run legacy programs that have compatibility issues. UAC settings determine how Windows Vista handles unsigned application files and UIAccess applications and whether Secure Desktop is enabled when a UAC dialog box is generated.

Do you know what these key terms mean You can check your answers by looking up the terms in the glossary at the end of the book.

access token account escalation Admin Approval mode administrator application context credentials digitally signed legacy programs local Administrators group

privileges Secure Desktop User Account Control (UAC)

In the following case scenarios, you will apply what you have learned about configuring and troubleshooting UAC and running legacy applications. You can find answers to these questions in the Answers section at the end of this book.

You are an IT professional for a company that provides equipment for home and small business users. Your company s customer installations typically consist of between four and eight workstations configured as a workgroup. Your company has recently been supplying workstations that run Windows Vista, and you have been asked to give advice about UAC. Answer the following questions: 1. Don Hall, the Chief Executive of Margie s Travel, is not convinced about UAC. He wants to know why he, as an administrator, needs to click Continue every time he wants to perform an administrator-level task. What do you tell him 2. Don is unconvinced. As an administrator he wants to be able to perform all tasks without prompting. What setting can he change to accomplish this with the least impact on network security 3. Don does not want any users logged on with standard accounts to be able to change configurations that affect any other user. As an IT professional, part of whose job specification is to advise on security, what do you tell him If he insists on reconfiguring UAC, how best can he achieve his objectives with the least impact on network security 4. Don wants to make the minimum number of changes to UAC configuration while assuring that he, as an administrator, is not prompted to give permission while performing administrative tasks while standard users are prohibited from initiating such tasks. How can Don reconfigure UAC to meet this goal, and what warning would you give

As an IT professional providing customer support, you need to advise customers about running legacy programs. Answer the following questions: 1. Kim Ackers wants to prohibit any legacy program that attempts to write to protected registry locations from running. What UAC setting should she configure

2. Don Hall cannot run a legacy program because it needs to run with a full administrator access token. How can he run the program 3. You have a legacy virus protection program that you want to run in Windows Vista. You have read that the Windows Vista Program Compatibility Wizard can help configure legacy software so it can run. Should you use this wizard in this instance If not, why not