If you need a program to share files over internet without restrictions or limits you can try use this program, DC++ or you can called it The Direct Connect network.

Features:

* No ads, spyware, or bundled software that you don’t need
* Open source software, code freely available under the GNU GPL
* Joins multiple hubs at the same time
* List of bookmark-like favorite hubs and users
* Shares large files and many files per your organization scheme
* Tiger Tree Hashes (TTH) used for file integrity
* Search across all (or selected) connected hub by type, size, or name
* Resume of downloads, with optional search for alternate sources
* Logging options and configuration for chat, private messages, downloads, and uploads
* Autoconfiguration of UPnP routers
* MAGNET link support for linking to specific content
* Automatic and manual download priorities
* Saving of user’s file lists for browsing and queueing
* Translation into other languags by custom supplied XML language files

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Retroshare is a private P2P sharing program, you can share information securely with your friends, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages and channels.

Features:

* A Private Peer to Peer Network which allows you to share information with only the people you want to.
* Reliable Identification and Authentication of your friends.
* Plus an Introduction Scheme which connects you to the friends of your friends, and facilitates network growth.
* Encrypted Communication, ensuring all shared information is known only to you and your peers.
* A Communication Platform which can potentially support services such as Secure Email, File Sharing, Video or Voice over IP and Messaging
* A Decentralised Social Sharing Network designed **For the People**
* With no dependancies on any corporate system or central servers.

With vuze you can watch, publish and share original DVD & HD quality video. The best program for high-quality entertainment by browsing through channels and categories containing thousands of TV shows, music videos, movies, video games and more.

Features:

* Search for torrents beyond Vuze straight from the client
* Discover high quality, maverick content on the Vuze network
* Download quickly and efficiently with intelligent bandwidth, queue and speed management
* Download and stream high-quality content fro the Vuze Network
* Easily share torrents with Vuze “Friends” feature
* Share bandwidth with “Friends” to get a “Friend Boost” and download faster
* Share video with friends via email
* Rate and comment functionality
* Vuze embedded video player
* Fullscreen functionality
* Ability to post video to social sites via magnet links
* Browse content by category or channel
* Watch videos as they are downloading
* Automate downloads on recurring content with RSS feeds

BitSpirit is a powerfull file sharing program, this software supports simultaneous downloads, download queue, UPNP port-maping, NAT traversal(UDP transport), select downloads from multiple files torrent package, disk cache, chatting with other peers, torrent market,ip-filter, etc. In 3.0 or above versions of BitSpirit, it also supports DHT network - which is based on Kademlia protocol, and fully compatible with Bittorrent official client.

Features:

* Clean interface
* Multiple simultaneous downloads
* Disk cache mechanism
* Fast job resume
* File selecting support
* Powerful file manager
* UPnP port-mapping
* Instant Messaging support
* Gzip Data compression
* Speed control
* Scheduled downloading
* Torrent Market
* Shutdown computer when job done
* HTTP/SOCKS4/5 proxy support
* High speed
* Very low CPU & Mem usage

This is another file sharing program, P2P file sharing program, with multiple network support and privacy protection features. Zultrax P2P is free of adware and spyware.

Zultrax P2P comes with an advanced queuing system, multsource swarmed downloads and fully stable software. This easy to use P2P file sharing client lets you search for video, audio and other files shared by other users and run high-speed downloads without need of expert knowledge.

Features:

* Free P2P Software
* Fast P2P file sharing
* Encryption
* Adware- and spyware free
* Modern file sharing technology
* Privacy protection
* Automatic setup

This is the latest LimeWire version, famous P2P file-sharing application. With limewire you can share and search for all types of computer files, including movies, pictures, games, and text documents. The application´s other features include dynamic querying, the ability to preview files while downloading, advanced techniques for locating rare files, and an extremely intuitive user interface.

If you need powerful bittorrent client you can use BitComet, this program also clean, fast and also very east to use . This is P2P file-sharing freeware fully compatible with Bittorrent, which is one of the most popular P2P protocol designed for high-speed distribution of 100MB or GB sized files. BitComet supports simultaneous downloads, a download queue, selected downloads in torrent package, fast-resume, chatting, disk cache, speed limits, auto-port mapping, proxy, and IP-filter.

What’s New in version 1.02:

* GUI Improved: task category will display “empty” when not set
* GUI Improved: whether to search for mirrors when add new HTTP task can be set as default setting
* GUI Improved: new option for preview window: keep aspect ratio of video
* GUI Improved: new switch button in toolbar of preview window: skip undownloaded range or waiting for buffering
* GUI Improved: BitComet resource browser (CometBrowser.exe) will exit immediately after close all its window
* GUI Improved: removw server mode option in advanced netword settings
* GUI Bugfix: user name and password in HTTP/FTP task properties dialog do not take effect
* Core Improved: Long-Time Seeding can download file boundary data for BT task, where one piece containing multi files
* Core Improved: when select part files of a BT task to download, the file boundary data……

Looking for the latest Azureus version ? you can download Azureus 3.0.5.2b via link below after jump.
Azureus is a famous Java based BitTorrent client that offers multiple torrent downloads, queuing/priority systems (on torrents and files), start/stop seeding options and instant access to numerous pieces of information about your torrents.
New Features:

* UIv3 | Ability to rate directly from rating reminder activity entry
* UIv3 | Added progress spinner animation for the LightBox

Download this latest LimeWire version, this is LimeWire 4.18.1 Final.
With limewire you can share and also search for all types of computer files, including movies, pictures, games, and text documents.

Features:
read LimeWire 4.18.1 Final more

Download Retroshare now, this is a free P2P sharing program , with Retroshare you can  share securely your friends, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages and channels.