Abstract: Arbitrary content-files on arbitrary computing platforms are enclosed by content-wrappers. The content-wrapper also binds searchable metadata that describes the content-files within the content-wrapper, as well as user-defined metadata. The metadata can include a title, author, date, and keywords that describe the content-file. The metadata provides searchable text for arbitrary content-files, including non-textual content-files such as graphics, audio, video, and multimedia content. Thus non-textual as well as textual data can be searched. The format of the original content-file is unimportant since the content-file is wholly embedded within the content-wrapper, or a reference (such as a URL) to the content is embedded within the content-wrapper. Content-wrappers can thus enclose any kind of file or even a data stream. Content-wrappers are designed for different computers and operating systems such as Microsoft-Windows-based PC's, UNIX workstations, and Apple Macintosh computers.