NeoNapster 4 is a file-sharing program based on the Gnutella and OpenNap protocols. NeoNapster gives users the ability to search for, download, and share music, videos, software, and other digital files with millions of users. NeoNapster 4 supports both the Gnutella network and the OpenNap protocal, with multihost download swarming, file hashing, Ultrapeer compatibility, download resuming, IRC integrated chat, firewall compatibility, and much more. Advanced features such as search filtering, bandwidth, and CPU limiting controls reside in an intuitive, easy-to-use interface. Version 4.0 beta 6 fixes OpenNap timeout errors.