if @new_resource.user && @new_resource.password
      cmd += "/RU \"#{@new_resource.user}\" /RP \"#{@new_resource.password}\" "
    elsif (@new_resource.user and !@new_resource.password) || (@new_resource.password and !@new_resource.user)
      Chef::Log.fatal "#{@new_resource.name}: Can't specify user or password without both!"
    end