PC Do Remote Command

Is an easy to use app which allows you to send simple commands to your remote computer.
It uses email as a medium of communication, so as long as you have internet connection PC Do works.

The supported commands are

Screen Shot - Capture screen
Lock Screen
Off Monitor
On Monitor
Log Off
Restart
Shut Down
Hibernate
Block Input - Disable mouse and keyboard inputs
UnBlock Input - Enable mouse and keyboard inputs

PCDoWin Server must be present on the remote computer to receive commands
which can be downloaded here http://www.yngsoftware.com/pcdo