A group that has mushroomed in recent years in an effort to solve the Y2K problem is steamed over one man’s attempt to collect patent royalties for a widely used fix known as windowing.

“To have someone come along and claim a solution that the whole community was involved in is outrageous,” said Peter de Jager, who operates the year2000.com Web site. The claim “has no validity,” said the Brampton, Ontario, Canada, speaker and consultant, but nonetheless, “it has us all spinning around in circles trying to figure out how to deal with this issue.”