wadtools extract --hashtable "%hashfile%" -i "%live%\aatrox.wad.client" -o "%desktop%\aatest" --filter-type bin
wadtools extract --hashtable "%hashfile%" -i "%live%\aatrox.wad.client" -o "%desktop%\aatest" --filter-type bin 1>NUL
wadtools extract --hashtable "%hashfile%" -i "%live%\aatrox.wad.client" -o "%desktop%\aatest" --filter-type bin 2>NUL

The first command without any redirection and the second with 1>NUL or just >NUL both print everything to stdout, but if I use even 2>NUL alone it prints nothing. There should only be error output for stderr and regular information in stdout.