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A very customizable automated Hotline client for server administration and user moderation.
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Open source GNU/Linux client that supports most of the latest Hotline features.
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A freeware clone of the Hotline client software written exclusively for Macintosh OS X, using Apple's Cocoa APIs.
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A Hotline client written for Unix/Linux-like operating systems. It employs the Gtk+ environment for the front-end and utilizes a back-end based on the HX project.
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Open source Hotline 1.2.3-compatible client for Macintosh OS X.
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Shareware Macintosh client and utilities for Hotline users.
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A Java-based Hotline client.
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A shareware Macintosh download utility for the automated downloading of files from the Internet using popular file transfer protocols, including the Hotline protocol.
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A Hotline client for BeOS. A version is available for the x86 hardware platform as well as PPC.
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A variant of the OpenLine client for MacOS and Windows that supports blowfish encryption. Licensed under GNU GPL.