DVIWIN is described as 'Windows viewer and print driver for TeX DVI files. DVIWIN is written by Hippocrates Sendoukas, and is free for individual and non-commercial use'. There are three alternatives to DVIWIN for Linux and Windows. The best alternative is xdvi, which is both free and Open Source. Other great apps like DVIWIN are javaDVI (Free, Open Source) and MDVI (Free, Open Source).
xdvi is a program to display TeX .dvi files under the X Window System. It runs under Unix (and look-alikes) and possibly VMS. I am also aware of a version that runs under Desqview/X, but do not know much about it.
MDVI aims to provide a library that can be used to implement DVI drivers easily. A DVI driver is included, and uses the X Window System to display files. However, MDVI is in its very early stages of development.