e-Surveiller is a powerful user-activity monitoring, logging and real-time surveillance software package. With it, you can monitor the activities of several computer users on standalone computers, on a local area network and on remote computers across the Internet.
You view the screens of monitored users on a LAN or across the Internet in real-time! and it empowers you to save screen snapshots at any time.
It stealthily records all keystrokes, web site visits, AOL, AIM, MSN, ICQ and Yahoo chat conversations, windows, applications, file changes etc. User-activity logs are periodically transferred, uploaded or emailed to you for analysis + more!
Other features include password-protection, peer-to-peer network support, remote monitoring updates and a comprehensive user-activity log viewer.

e-Surveiller is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  34.95USD.