Grasshopper for Rhino 4 SR4

hi, my name is Van and I am really new to Grasshopper as well as Rhino. I am using Rhino 4.0 SR4 and I really want to use Grasshopper as well. Therefore, does anyone know to install Grasshopper for Rhino 4 SR4?
Thank you so much
  • Luis Fraguada

    Nope.  If you are using Rhino, why not upgrade to the latest service release?
  • van phan

    Thank you so much, but I dont know how to upgrade it. Moreover, I think the upgrading may take about $100, so is there any service that I can download from the website to upgrade it?
  • Danny Boyes

    Downloading the latest service release is free. Simply go to the download section of the McNeel website. You will be asked for the email address you used when you registered Rhino along with the license key.
  • van phan

    Thank you so much. I did try to put the license key I got but it said invalid. I think my one is too old to register. Actually, the Rhino soft­­ware that I installed is from my friend, she gave me with the license key. So do you kno­w any ­way else to do so?
  • Danny Boyes

    A valid Rhino 4 license key is 24 characters long with the first 4 being RH40. Is this what you've got?