The typical ed2k link also includes the filename and the filesize. An example (a link to the 15Mb Purist Edit trailer) is provided below:
ed2k://|file|The_Two_Towers-The_Purist_Edit-Trailer.avi|14997504| 965c013e991ee246d63d45ea71954c4d|/The ed2k links can also include a reference to the IP address and port of the specific client that shares a file. This is done by adding a list of sources after the main part of the link.
ed2k://|file|The_Two_Towers-The_Purist_Edit-Trailer.avi|14997504| 965c013e991ee246d63d45ea71954c4d|/|sources,202.89.123.6:4662|/The "file" part indicates that this is a file link, as opposed to server link. A server links is a reference to the eDonkey 2000 server. Clicking on such links typically adds it to the server list.
ed2k://|server|207.44.222.51|4242|/After installing one of the eDonkey 2000 clients the ed2k:// protocol is registered in Microsoft Windows (and perhaps, other OSes), so that clicking on it in the browser automatically starts the download.