Windows NT had them since 2000: https://www.microsoft.com/msj/0399/jobkernelobj/jobkernelobj.aspx https://www.microsoft.com/msj/0399/jobkernelobj/jobkernelobj..

Windows NT had them since 2000: https://www.microsoft.com/msj/0399/jobkernelobj/jobkernelobj.aspx https://www.microsoft.com/msj/0399/jobkernelobj/jobkernelobj... They are called Job Objects in NT, as opposed to Namespaces or Zones in other kernels.