Microsoft Corp. plans to severely curtail the ways in which people running pirated copies of its dominant Windows operating system can receive software updates, including security fixes.

The new authentication system, announced Tuesday and due to arrive by midyear, will still allow people with pirated copies of Windows to obtain security fixes, but their options will be limited. The move allows Microsoft to use one of its sharpest weapons — access to security patches that can prevent viruses, worms and other crippling attacks — to thwart a costly and meddlesome piracy problem.

But some security experts said the crackdown also could increase Internet security problems in general, if there is a spike in unsecured computers open to attack, which then could be used to attack others.

Over the next few months, the software behemoth will begin to more broadly adopt the program, called Windows Genuine Advantage, that urges users to provide proof their Windows copy is authentic before receiving some software updates.

By mid-2005, the program will become mandatory for Windows users to get virtually all updates, including security fixes available through the company’s Windows Update Web site. But users who have pirated copies of Windows will be able to continue to get security fixes if they sign up to automatically receive security updates.

Microsoft said the company has no current plans to require users running automatic updates to provide proof that their copies of Windows are genuine.

Customers who visit the manual Windows Update site will be asked to prove that their copies of Windows are legitimate by allowing Microsoft’s system to automatically run a check, or by providing a product identification number. Users who have lost that number will be asked three basic questions, and if they are deemed to be acting in good faith they will be given a free replacement key.

Source: AP