Since not everybody reads
this thread, I post a separate topic in this section.
cons2tcod is a replacement of the default Windows console, which allows to view roguelikes (and other text mode applications) just like they would look in DOS. Especially useful in Vista and newer, since these systems don't even allow viewing console applications in full screen. However, even on older Windows systems, this utility should be useful, because it uses the correct colors, the correct codepage (if a roguelike uses extended IBM characters, like Crawl, it should look better), and has a possiblity to change fonts.
Get it here