Battlefront.com offers a patch for Combat Mission Barbarossa to Berlin to add Vista compatibility to this World War II strategy game first released in 2002. This is not a free patch, however, as it carries a $5.00 purchase price. Word is: "you only need this upgrade if you have purchased CMBB somewhere else than directly from Battlefront.com, or if you have purchased from Battlefront.com directly but before July 17th, 2009, and if you are experiencing problems running the game under Windows Vista. In all other cases, you DO NOT NEED this upgrade." They recommend users try the patch before purchase, and offer the updated demo to allow you to try it before you buy it. Likewise, Battlefront.com also offers a $5.00 patch to add Vista compatibility to Combat Mission Afrika Korps, which was first released in 2003, and an updated demo is also available for this game.