SQL Server 2005 SP2 for Vista and Longhornhttp://192.168.2.20/blogs/doverton/archive/2006/11/09/sql-server-2005-sp2-for-vista-and-longhorn.aspxIf you have SQL based apps, they will have to upgrade to SQL 2005 SP2 (that includes the MSDE replacement SQL Express). e-Week noted ( SQL Server 2005 SP1 Users Face Vista, Longhorn Glitches ): These two operating systems will only support SQL ServerenCommunityServer 2008.5 SP2 (Build: 40407.4157)