ServerControl offers exceptional functionality, buy the full version here.
Shutdown, Reboot, Manage Services
Manage your Servers from your iPhone
ServerControl allows you to reboot or shutdown your Windows computers as well as control their services remotely from your iPhone, wherever you are.
Managing Windows servers inevitably means rebooting them, or restarting services, and ServerControl is a very convenient way to do this. If you're out of the office, simply connect over your VPN and initiate a reboot or restart a hung service. ServerControl needs no additional software installed on the remote server.
For home users, if you stream videos to your iPad whilst in bed, use ServerControl to shut down your PC afterwards.
Delayed ShutdownSet a machine to Shutdown after a delay
Delayed RestartSet a machine to Restart after a delay
Stop, Start and Manage Services
Manage the services running on your servers such as IIS Web Services, Print Spoolers, Exchange Servers, all remotely using ServerControl.
Start, Stop, Pause, Continue or change the startup type of any service.
When stopping a service ServerControl will automatically stop all dependent services.