'Browster', and 'Seal'

Browster

Browster is the quickest way to browse through search results and other lists of links. It is a free browser plugin that automatically prefetches links and provides a fast preview window to view a page quickly before committing to go there. Browster's prefetching and previewing capability can cut the time required to go through search results and other links by as much as 50%. This helps internet users achieve more effective searches in less time. Browster is available today for Internet Explorer and soon for Firefox.

http://www.browster.com/

Seal

SEAL is a 32-bit graphical user interface (GUI) for DOS. It supports many advanced features, such as a dynamic linking system (XDL), sound and other multimedia functions (SFA), multilingual support, and more! The minimum system requirements are as follows: A 486 processor or better, At least 8mb of RAM (you may be able to run SEAL with less, but it is not recommended), A video card which supports at least 640x480 resolution in 256 colors, although 16-bit color is recommended. At least 1.6mb of hard disk space (more recommended). MS-DOS 3.0 or higher (or compatible - DR-DOS, PC-DOS and FreeDOS all work with SEAL).

http://sealsystem.sourceforge.net/