Your network consists of an Active Directory domain and 100 computers that run Windows 7. The domaincontains a logon script named logon.cmd. You plan to deploy a new application named app1.msi by usingthe logon script. App1.msi is stored in \\server1\share1. You need to modify the logon script to deploy theapplication. 
What should you include in the logon script?（）

You have a computer that runs Windows 7. A user installs a third-party media player on the computer. Youdiscover that all media files automatically open by using the third-party media player. You need to ensurethat all media files open automatically by using Windows Media Player. You must achieve this goal by usingthe minimum amount of administrative effort.
What should you do?（）