http://msmvps.com/blogs/sitebuilder/archive/2005/02/05/35051.aspxEvery so often we get a request for help from someone who has lost their product key. To obtain a new product key for your Office program in the United States, call 1-800-936-5700 and speak to a Microsoft customer service representative. For more informationenCommunityServer 2008.5 SP2 (Build: 40407.4157)