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IPFilter 3.0.2, published by David Moore, is a lightweight Windows utility that automates the download and installation of the ipfilter.dat file used by major BitTorrent clients to block potentially malicious peers. Operating in the Privacy & Security category, the program retrieves regularly updated IP block-lists from community-maintained sources and places the correctly formatted file in the appropriate client directory, eliminating the need for manual editing. Once installed, the filter prevents connections to ranges associated with anti-P2P organizations, spyware seeders, and other hostile addresses, reducing the risk of surveillance, fake torrents, and bandwidth leeching while maintaining download speeds among trusted peers. The application supports two concurrent versions—3.0.2 and the legacy 2.x branch—allowing users to stay current or remain on an earlier build for compatibility with older BitTorrent software; both branches can be switched from within the interface without reinstallation. Typical use cases include hardening a client before downloading public torrents, refreshing an outdated ipfilter.dat after several weeks of heavy torrenting, and deploying the same block-list across multiple machines in a household or small office. The utility runs on-demand or on a scheduled task, verifies list integrity with SHA-256 checksums provided by the list maintainers, and creates a dated backup of the previous ipfilter.dat so users can roll back if a newly introduced range causes unintended blocking. IPFilter is available for free on get.nero.com, with downloads delivered through trusted Windows package sources such as winget, always serving the latest version and supporting batch installation alongside other applications.
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