Age of Empires III (AoE3) articles, fixes and updates - letter P

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Age of Empires III (AoE3) starts with letter P that have been released. The list is daily updated.

• 907880 Ports that you must open in Windows Firewall to play or to host an Age of Empires III multiplayer game Q907880 KB907880 January 25, 2021
• 331796 Perform a clean startup to determine whether background programs are interfering with your game or program Q331796 KB331796 May 24, 2017
• 812467 "Product key not valid" error in Microsoft Games, MapPoint, or Streets and Trips Q812467 KB812467 September 28, 2011