1. An information processing apparatus having an operating system installed thereon, the apparatus comprising: a storage device configured to store a resource file including a plurality of help files previously prepared respectively for a plurality of languages in a compressed format; a help file manager configured to obtain language type information indicating a language type currently set for the operating system, obtain one of the plurality of help files that corresponds to the obtained language type information from the resource file, and expand the obtained help file into an expanded help file to store the expanded help file at a specific location of the storage device; a help display processor configured to generate a help window based on the expanded help file under control of the operating system; and a user interface configured to display the help window generated based on the expanded help file.