gistfile1.rb

elsif name == "winnt"
  product_type = node[:kernel][:os_info][:product_type].to_i
  version_major, version_minor, version_build =
    node[:kernel][:os_info][:version].split(".").map { |v| v.to_i }

  if version_major == 4
    distro = "nt"
  elsif version_major == 5
    distro = case version_minor
             when 0 then "2000"
             when 1 then "xp"
             when 2 then "2003"
             else "unknown"
             end
  elsif version_major == 6
    if product_type == 1 #VER_NT_WORKSTATION
      if version_minor == 0
        distro = "vista"
      else
        distro = "7"
      end
    else
      distro = "2008"
    end
  end

  default[:sigar][:platform][:distro] = distro
  description = kernel.os_info.caption.strip
end