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WinMX (Windows Music Exchange)〔http://www.proceso.com.mx/?p=234739〕 was a freeware peer-to-peer file sharing program authored by Frontcode Technologies that ran on Microsoft Windows operating systems of the time, created in 2000.〔http://web.archive.org/web/200012062027/http://www.winmx.com/〕 According to one study,〔( "iTunes more Popular than most P2P services." DMN Newswire )〕 it was the number one source for online music in 2005 with an estimated 2.1 million users. Frontcode itself abandoned development of WinMX in September 2005, but a community of developers brought the service back online within a few days by releasing patches or new host files. In North America, WinMX has been eclipsed by other networks such as gnutella and eDonkey as well as to the BitTorrent file transfer protocol. In May 2011 the WinMX WPNP network came under attack causing WPNP network searches to return random results. Many users of the WinMX software are still utilising the OpenNap functionality which remains unaffected by the attacks. Efforts are still under way to develop a new client that will be compatible with the old one, which is believed to no longer be affected by such WPNP specific network attacks. == Beginnings == WinMX began its life as an OpenNAP client capable of connecting to several servers simultaneously, although Frontcode later created a proprietary protocol, termed WinMX Peer Network Protocol (WPNP), which was used starting with WinMX 2 in May 2001. Frontcode had operated several cache servers to aid WPNP network operation. Downloads could be very fast for popular songs since the user can run a "multi-point download" that simultaneously downloads the same file in small pieces from several users. Some considered WinMX to be much safer than many other file sharing software, mainly because no spyware or adware came with WinMX. The WinMX program housed a few built-in features such as bandwidth monitoring, short messaging, and hosting chatrooms and functions as an OpenNap client. Users could negotiate an exchange of their files with the help of the short messaging system or chat. After the transfers started each had the option of selecting bandwidth for the other to make sure both transfers end more or less at the same time. There are a few drawbacks of the program itself. It was reported to use large amounts of memory when run for a long time with third party add-ons. There is an upper limit to the size of files that can be shared (2GB), this design decision was to maintain Windows98 support. The program will run correctly on XP, Vista and Windows 7 Operating systems as long as the relevant Microsoft C++ run time libraries are present. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「WinMX」の詳細全文を読む スポンサード リンク
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