GFI WebMonitor for ISA Server 4.0 Control your Internet users’ browsing habits and monitor downloads in real-time with GFI WebMonitor for ISA Server. GFI WebMonitor gives you total control over what users can browse and what files they can download in real-time. Complete Internet access control is achieved through web categorization and web filtering techniques. Real-time download monitoring allows you to protect your network from viruses, spyware, malware and phishing attacks.