wineserver64: command not found

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 CentOS possible default full paths are:

/usr/bin/wineserver64 - from package: wine-core

You may install the required package with command yum install {package}

Error in other languages:
wineserver64: bevel nie gevind nie
wineserver64: comandă negăsită
wineserver64: comando não encontrado
wineserver64: commande introuvable
wineserver64: command not found
wineserver64: käsku ei ole
wineserver64: không tìm thấy lệnh
wineserver64: komanda nerasta
wineserver64: Kommando nicht gefunden.
wineserver64: kommandot finns inte
wineserver64: komut yok
wineserver64: nie znaleziono polecenia
wineserver64: níor aimsíodh an t-ordú
wineserver64: no se encontró la orden
wineserver64: no s'ha trobat l'ordre
wineserver64: opdracht niet gevonden
wineserver64: parancs nem található
wineserver64: perintah tidak ditemukan
wineserver64: príkaz nenájdený
wineserver64: příkaz nenalezen
wineserver64: команда не найдена
wineserver64: командата не е открита
wineserver64: 命令找不到
wineserver64: コマンドが見つかりません