Abstract: In one embodiment, a server may identify an executable file using a hash identifier. The server 110 may compute a hash identifier based on a file metadata set associated with an executable file. The server 110 may identify the executable file using the hash identifier.

Abstract: In one embodiment, a server may identify an executable file using a hash identifier. The server 110 may compute a hash identifier based on a file metadata set associated with an executable file. The server 110 may identify the executable file using the hash identifier.

Abstract: A television-based hyperlink content navigation system includes a display device having a viewing area for displaying visual content such as an Internet Web document. Generally, the visual content has a content area that is larger than the viewing area, and includes a plurality of selectable objects such as hyperlinks and image maps. A user-manipulated operator such as a joystick allows navigation through the various hyperlinks and image maps, and also initiates scrolling of the visual content. Assuming that a focus is initially on a first one of the objects, moving the trackball tabs the focus to a nearby second object if the second object is within a predefined linear distance from the first object. If there is no second object within the predefined distance, moving the trackball causes the visual content to scroll at a speed that is proportional to the trackball speed.