Internet :

NetScope 1.10
This program scans a network continuously, and checks when somebody switches a PC on. NetScope then sends an e-mail message to you or to your GSM SMS e-mail. When someone turns a PC off, NetScope also sends a message to you. NetScope also can play sound or run any program.
This software is a shareware. You will be able to download and test NetScope during a certain period of time, then, if it does what you need, you will have to acquire the full version. The trial version available for download on www.softandco.com has a size of 1143 KBytes. For additional information and support request, please contact directly NetScope publisher.
NetScope 1.10 was released by AmoSoft on Wednesday 23 June 2004. Its known requirements are : P233/ 32MbRAM/ 5Mb HDD.
NetScope will run on Windows 95, Windows 98, Windows Me, Windows 2000, Windows NT and Windows XP.