http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/07/21/Administrative-privileges-no-longer-required-to-log-in-to-Manager-at-9.3.aspxHere's a 9.3 improvement that’s not immediately visible, but may simplify the way you work with Manager in your GIS department. In ArcGIS Server for the Microsoft .NET Framework 9.2, you were required to have Administrator privileges on the Web serverenCommunityServer 2.1 SP2 (Debug Build: 61120.2)