FREE
distributed.net Client 2.8016.470
Daily stats for your computer(s) are available at the Web site once you sign on.
Help is available 24/7 via distributed on EFNet IRC. This version is optimized for PPC and G4 AltiVec enhanced processors.
A 300 MHz G3 should crack over 1 million keys per second. When the client program runs, it will connect to one of the proxies. Your computer will be assigned a block of keys to test, searching for a solution.
The default size is 2^28 keys; most typical computers can finish one block of this size in about 30 minutes, though it will depend on the speed of your CPU. The more computers they have working together, the faster the combined effort will be.
Any machine with a reliable connection to the Internet will work.