wmxres: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/wmxres - from package: wmxres

You may install the required package with command apt-get install {package}
Error in other languages:
wmxres: bevel nie gevind nie
wmxres: comandă negăsită
wmxres: comando não encontrado
wmxres: commande introuvable
wmxres: command not found
wmxres: käsku ei ole
wmxres: không tìm thấy lệnh
wmxres: komanda nerasta
wmxres: Kommando nicht gefunden.
wmxres: kommandot finns inte
wmxres: komut yok
wmxres: nie znaleziono polecenia
wmxres: níor aimsíodh an t-ordú
wmxres: no se encontró la orden
wmxres: no s'ha trobat l'ordre
wmxres: opdracht niet gevonden
wmxres: parancs nem található
wmxres: perintah tidak ditemukan
wmxres: príkaz nenájdený
wmxres: příkaz nenalezen
wmxres: команда не найдена
wmxres: командата не е открита
wmxres: 命令找不到
wmxres: コマンドが見つかりません