Getting my bits in a twist

This week I installed a new Windows Vista virtual machine in Hyper-V.  I installed the OS, added it to the domain, then realised that I had not added the integration services for the guest OS.  Launching the install for them gave me the following error message which I had not seen before.

As far as I was concerned I had installed Windows Vista with Service Pack 1, something which winver.exe confirmed, but the components still refused to install.  I started thinking it was a bug in RC1 of Hyper-V, so I set about to write up a query with the internal help email list we have.  I opened up the system information screen to compile the info for my email when I noticed my mistake...

Without realising, I had put the Windows Vista x64 DVD into the drive rather than the x86 version.  Consequently, I had installed Windows Vista 64bit, for which Hyper-V does not have the integration services available. :-(

Back to square 1 then.  It is always a nice feeling to realise that you have lost an hour or so because of doing something rather silly.  Sigh...