WFilter Enterprise - Monitor, filter and block Internet access, WFilter is Internet filtering and monitoring program that can help organizations to monitor and manage employees internet behaviors in their networks. You only need to install WFilter in one computer to monitor the whole network.
Furthermore, you will simply need to install and configure WFilter on a single PC in order to be able to monitor an entire network.

WFilter Enterprise Features:
Monitor and archive all internet activities
1. Keep a detail record of each web surfing and web posting.
2. Record all email content and attachment.
3. Monitor and capture instance messengers chat contents and activities.
4. Monitor and capture files transferred by web, ftp and IM tools.

Filter internet content and restrict internet access
1. Filter certain websites.
2. Customizable email usage control policy.
3. Block certain messengers.
4. Block file transfers.
5. P2P, online streaming and online gaming control
6. Detect and block P2P traffic.
7. Detect and block online streaming media.
8. Detect and block online gaming, stock program and others.
9. Support up to 68 protocols and softwares.

Real time network connection monitor and alert
1. Show online computers.
2. Show online messengers, online browsing and file downloading.
3. Show all online internet connections, and administrators can also block or cancel a current session.
4. Monitor each computers real-time bandwidth.
5. Real-time keywords alert.
6. Real-time software launching alert.
7. Various kinds of statistic and report
8. Various kinds of graphics statistics for chatting, web surfing, email...
9. Automatically send daily report to the administrator.

The license of this software is Free Trial Software, the price is $39, you can free download and get a free trial.