单项选择题 When you use Microsoft Windows Media Player to begin playback of a music file, you receive the following error message: “You do not have the rights to play this file.” You need to configure Windows Media Player to ensure playback of protected digital media. What should you do?（）

多项选择题 Your workgroup contains computers that run Microsoft Windows Vista and Microsoft Windows XP Professional. Employees that use Windows XP Professional do not appear in the Invite people list of a Microsoft Windows Meeting Space meeting. You need to ensure that all employees are invited to Windows Meeting Space meetings. Which two actions should you perform?（）

单项选择题 You administer your companys network. All client computers run Microsoft Windows Vista. A standard user reports that they are unable to install an application. You need to install the application. What should you do?（）