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Utatane is a Windows OpenNap client developed in Japan, and available in English translation. It is the client most often recommended by the largest OpenNap servers in Japan such as Zerosen. On an average day, perhaps 3000 Utatane users can be observed connecting to these servers, sharing upwards of 10 million files or 2 petabytes of content. Utatane is meant to be a development and improvement on WinMX, which can also connect to OpenNap. Utatane can connect to multiple servers, allows for automatic uploads to buddies ("Auto Users" who are added to a Hot List), clickable URLs in channels and private message windows, easy resumption of transfers, and has the ability to copy and paste text like windows, etc., and the saving of search results as a file for future reference. A user guide is included in the installation file. The user can choose to allow uploads to start automatically, or can allow only those who have been promoted to Auto User status. Unlike many P2P clients, Utatane allows users to search through the search results.