FrostWire is a free Gnutella client based on LimeWire distributed under terms of the GPL. It was created in September 2005 after LimeWire LLC received a cease and desist letter.
FrostWire is a useful file sharing utility that gives you the possibility to transfer files from and to your computer.
The LimeWire open-source community then decided to create FrostWire, - a free offspring using the publicly available sourcecode from LimeWire to create a Gnutella client that does not filter any content.
Note: Some antivirus and antispyware programs flag FrostWire as being infected/malware, although the application is perfectly safe and does not pose a threat to your system. This is called a 'false positive'. The term false positive is used when antivirus software wrongly classifies an innocuous ( inoffensive ) file as a virus. The incorrect detection may be due to heuristics or to an incorrect virus signature in a database. [Similar problems can occur with antitrojan or antispyware software.]

· Completely free & open-source
· Firewall-to-firewall transfers
· Built-in community chat
· No bundled software of any kind!
· Connects to more sources
· Creative commons license support
· Max. speed network connections
· Junk result filters
· Turbo-Charged download speeds
· iTunes integration
· BitTorrent support
· Proxy Support

Requirements:
· 64 MB RAM (128 MB RAM recommended)
· A Java Runtime Environment (JRE) version 1.5
· A live connection to the Internet

What's New in This Release:
· UX upgrade, send file or send folder support when a file or folder is dropped on FrostWire.
· UX upgrade, file choosing dialogs on Mac now also show mounted volumes.

Reasons why this program is marked as ad-supported:
· Offers to change the homepage for web browsers installed in the system
· Offers to change the default search engine for web browsers installed in the system
· Offers to download or install software or components (Ask Toolbar) that the program does not require to fully function