Want the Enterprise version of Microsoft Windows Vista?

PC World | at | by Mike

Businesses that want the Enterprise Edition of Microsoft's forthcoming Windows Vista operating system will have to sign up for its Software Assurance licensing program, the company announced today.

Software Assurance, introduced in 2001, encourages customers to pay an annual fee to use Microsoft's software rather than buying outright licenses. The annual fee includes software upgrades plus other support services.

The program has been controversial; it met with considerable resistance after some analysts said customers would end up paying more under Software Assurance than under the previous licensing plan.