Can you download Hyper-V?

I've just installed WS2K8 standard from an MSDN DVD with a view to creating a VM running WS2K3 but i can't find Hyper-V anywhere in the 'Server Roles' where it should be.

Is it possible to download extra roles i.e Hyper-V from anywhere?

From serverfault RKid

• If you have installed the RTM, then there's a small update you need to install before you can select it as a server role. See this MS KB article.

  Microsoft also offers a stand-alone hyper-v server that is free (although you have to license the virtual OS's) This is a huge ISO & probably not what you want.

  RKid : Thanks for the reply. Thought that might have done the trick but Hyper-V still isn't appearing in the 'Add Roles Wizard' after installing the update you mentioned. *just realised - i've not d/l'd SP2! That'll be why i'm guessing!

  RKid : Installed SP2 and Hyper-V STILL not available.

  RKid : Gave up. Found a WS2K8 R2 x64 Disk so installed that. Hyper-V was ready & waiting :) Then told that virtualisation no longer required! C'est la vie! Thanks for the suggestions guys (",)
  From Nick Kavadias

• I don't think you can download Hyper-V as a seperate package, you will have to aquire the Hyper-V edition of WS2K8. I don't know the license deal MS is using, but I would be suprised if you got Hyper-V for free.

  From tore-