European stocks slightly advanced at mid-day trading, benefiting from improved guidance at Heineken, which helped offset some losses amid the ongoing Mideast fighting. The shares of the brewer rose 3.3% in Amsterdam after the company lifted its 2006 profit outlook. Among declining stocks, a notable loser was the French IT services group Atos Origin, which dropped 16.7% on revenue warning for the full year. U.K. online gaming stocks sharply dropped for a second straight session, with Party Gaming down 6.8%, and Sportingbet slipping 21.2%. A downbeat update from peer Empire Online also added pressure, with the stock falling 8%. The German DAX 30 added 0.2%, the French CAC 400 advanced 0.2%, while London FTSE 100 added a fraction of a percentage point at 5,701.