Microsoft on Monday announced licensing changes for Windows .Net Server 2003, which moves to a second release candidate sometime this week. The licensing modifications could radically change how businesses obtain client-access licenses (CALs) for future Microsoft products. The company until now has required businesses to buy a separate "per seat" license for each computer or device connecting to one of its server products. Starting with Windows .Net Server 2003, which is slated for release in April, businesses also will have the option of purchasing CALs per user, rather than just per machine. Read more: ZDNet.