You are the desktop administrator for Contoso, Ltd. The company’s network contains 1,000 Windows XP Professional computers, which are members of a single Active Directory domain. The computers’ hard disks are formatted as NTFS. The company’s software developers release a new custom application. The application uses a .dll file named AppLib.dll, which is installed in a folder named Program FilesContosoOpsApp. The company’s help desk technicians report that several users experience problems when they use the application because the AppLib.dll file was deleted on their client computers. The company’s software developers recommend
that you modify the file permissions on AppLib.dll so that users have only Read permission on the file. You need to ensure that all users have only Read permission on the AppLib.dll file on all 1,000 Windows XP Professional computers. What should you do?