Free peer to peer software for windows

Widesource "peer to peer" sharing program features a powerful search engine
to find web pages on the Internet.
The search engine includes multiple criteria to enhance search quality,
such as page size, opinion, date, language, keywords, connection speed,
and other specifications.
Other features of Widesource include bookmarks management, fast search
on internet or in your own bookmarks, usefull macros, browsing other
users bookmarks,password-protection and access restriction (on IP mask
or name), a friends list, new version notification, wordwide chat,
connected people list, user-friendly graphical interface, futur
availability of skins, and more.
The program runs as a convenient icon in the System Tray area of the
Windows taskbar.
No Spyware !

Peer Search Premium is a useful and free application that lets you to connect to major P2P networks such as Gnutella, G2, and Bittorrent, Peer Search Premium is advanced file searching and sharing program. It returns thousands of song, movie, image, and other media files within a second.
Main features:
- Ease of use - Simply install, search ,download and play
- Ability to search by artist, title, genre, or other information
- Multihost download ("Swamp")
- Automatic download resume , retry
- Previews the files while you are downloading them
- Supports different format of media files
- Audio toolbar give you easy control of music playing and easy playlist management
- works through firewalls
- All downloaded files are organized into different categories in library, library includes a pre-viewer for quick image view
- Connects to the G1 and G2 Peer to Peer network.

PeerNet is a multi-platform peer to peer search engine. The goal of this program is to create the biggest websites database. PeerNet is not like other search engines. It contains an integrated url crawler. By the way, everyone who use PeerNet contributes to the enrichment of the websites database.