# Update and Registration

- You can use your modem or local area network to connect directly to Taftan Data's WWW site. Our web site provides you with several on-line ordering services to make the registration process quick and easy.

  Please remember! You can always download the latest version of our software directly from our web site.

  To order/update:

  - Make sure your modem or network is connected and ready to go.
  - Go online now!

  Available software:
  - Air & Exhaust Gas Properties: shareware for energy consultants
  - Steam Properties: shareware for energy consultants
  - Steam Properties for VisSim: demo for energy consultants
  - Molecular Weight Calculator: freeware for chemical engineers
  - Periodic Table: freeware for chemical engineers
  - MS Excel worksheets for different units in power plants and HVAC applications