PeerGuardian (Windows 98/Me)

PeerGuardian is a free security software designed for Windows 98 and Me, aimed at enhancing user privacy while online. This program primarily functions as a firewall that blocks unwanted connections and protects users from malicious IP addresses. It effectively maintains a list of known harmful sources and prevents them from accessing the user's system, which is critical in safeguarding personal information and maintaining privacy during internet activities.

The application allows users to customize their blocking preferences by adding or removing IP addresses from its blacklist. Additionally, PeerGuardian provides users with a simple interface that makes navigating its features straightforward, even for those with limited technical knowledge. This program is particularly useful for individuals looking to enhance their online security without incurring costs, making it a practical choice for users of older Windows systems.