"The most compelling driver for these organizations will likely be the end-of-support deadlines on currently-deployed Windows systems although organizations resisting vendor-forced upgrading will continue to do so," according to Hydrasight. "Therefore, and given first-year adoption figures for [Windows] XP, Hydrasight expects an overall adoption rate in Australia of less than 10 percent for Vista in 2007."

Hydrasight believes the most likely way Vista will be introduced to businesses will be via the ad-hoc purchase of new desktops and notebooks rather than "fleet" upgrades.