... and with pretty much every Unix shell in existence, for which multicolumn output is the default. Since TCC is about the closest you can get to a Unix shell under Windows, I would imagine there's a fair number of Unix users employing it for that purpose. The /Z isn't because I miss MSDOS...

On a standard 80-column window, 'dir /2z' with TCC / TCC/LE 10.0.76 (i.e. the latest version) produces 82 columns of output. For example (with some character substitutions made because the editor is trying to parse them as control data): [C:\WINDOWS\Fonts]dir /2z . [dir]...