# File lib/chef/knife/windows_bootstrap.rb, line 94
      def psexec(args)
        cmd = ['psexec', @unc_path, "-h", "-w", 'c:\cchef\tmp']
        if config[:user]
          cmd << "-u" << config[:user]
        end
        if config[:password]
          cmd << "-p" << config[:password]
        end
        cmd << args
        cmd = cmd.join(' ')
        Chef::Log.debug("system #{cmd}")
        system(cmd)
      end