ClockRes lets you view the resolution of the system clock, which is also the maximum timer resolution.CacheSet is a program that allows you to control the Cache Manager’s working set size using functions provided by NT.BlueScreen screen saver not only accurately simulates Blue Screens, but simulated reboots as well (complete with CHKDSK).BgInfo is fully-configurable program automatically generates desktop backgrounds that include important information about the system including IP addresses, computer name, network adapters, and more.Autorun lets you see what programs are configured to startup automatically when your system boots and you login.Autologon lets you bypass password screen during logon.AdRestore – Undelete Server Active Directory objects.AdInsight is an LDAP (Light-weight Directory Access Protocol) real-time monitoring tool aimed at troubleshooting Active Directory client applications.AdExplorer or Active Directory Explorer is an advanced Active Directory (AD) viewer and editor.

Use it to find holes in your permissions. AccessEnum is simple yet powerful security tool shows you who has what access to directories, files and Registry keys on your systems.AccessChk is a command-line tool for viewing the effective permissions on files, registry keys, services, processes, kernel objects, and more.

What is in the sysinternals suite