Protocol

Miranda IM Protocol Plugin.

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Developer: mtlen.berlios.de
License: GNU General Public License (GPL)
Operating System: Windows

Gaim is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows.

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Developer: Gaim Developer
License: GNU General Public License (GPL)
Operating System: Windows, BSD, Linux, Others

Z-Push is an implementation of the ActiveSync protocol, which is used 'over-the-air' for multi platform ActiveSync devices, including Windows Mobile, Ericsson and Nokia phones.

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Developer: z-push
License: GNU General Public License (GPL)
Operating System: OS Independent, POSIX

PyGG - Python implementation of Gadu-Gadu instant messaging protocol, very popular in Poland.

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Developer: pygg
License: GNU General Public License (GPL)
Operating System: OS Independent

This project was born out the desire to see if I could write a bot that connects to a filesharing network with an undocumented protocol via PHP.

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Developer: Joel De Gan
License: Freeware
Operating System: any

SSL is an internet security protocol.

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Developer: scripts.franciscocharrua.com
License: Freeware
Operating System: All

FTE QuakeWorld is a QuakeWorld-derivative which mainly focuses on modding and additional features for both users and servers.

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Developer: fteqw
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP), All POSIX (Linux/BSD/UNIX-like OSes), Linux

PocketSIPMsg is a SIP instant messaging client for small devices that use Windows CE.

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Developer: pocketsipmsg.berlios.de
License: GNU General Public License (GPL)
Operating System: Windows CE

It's an perl module for simple use of Vypress Chat protocol.

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Developer: search.cpan.org
License: GNU General Public License (GPL)
Operating System: OS Independent

Jabbah is simple library with very easy to understand API for jabber communicators.

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Developer: jabbah.berlios.de
License: GNU Lesser General Public License (LGPL)
Operating System: MacOS X, Windows, Linux

Free for personal use.

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Developer: Sergey Prunsky
License: Freeware
Operating System: Windows

Free for personal use.

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Developer: Sergey Prunsky
License: Freeware
Operating System: Windows

Free for personal use.

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Developer: Sergey Prunsky
License: Freeware
Operating System: Windows

Secure FTP Applet is Unix compatible.

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Developer: JSCAPE
License: Freeware
Operating System: Unix

Have you ever wanted a way to make your Outlook calendar data more accessible.

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Developer: Intelliscript.net
License: Freeware
Operating System: Linux, Unix, Windows

SmartIRC is a PHP class (soon also for C#) for communication with IRC networks, which conforms to the RFC 2812 (IRC).

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Developer: Mirco Bauer
License: Freeware
Operating System: Unix/Linux/Windows

HTTP Commander.

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Developer: HTTP Commander
License: Freeware
Operating System: Windows 2000 / XP Pro / 2003 Server

It assigns a unique number (protocol) to every document and stores much information about this document.

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Developer: TECOrange
License: GNU General Public License version 3.0 (GPLv3)
Operating System: Not Available

Give a social touch to your magento store.

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Developer: Apptha
License: Common Public License
Operating System: Not Available

LinkChecker can check HTML documents for broken links.

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Developer: Bastian Kleineidam
License: Freeware
Operating System: Windows, Unix/Linux, Mac OS X