"Win7 Professional certainly is home software if you choose to use it at home."
And by the same token it's professional software if you choose to use it professionally. As per my comment above, they've probably been using a set-up that's worked well for them over the years. Why should they be expected to have had the foresight to set it up differently so that their vendor couldn't do this to them years in the future?
Biting the hand that feeds IT
