I've successfully used this with SQL Server 2000 and ASP. It was very easy to implement. http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=7584&lngWId=4 Best wishes >>> caseyc at IntelliSoftmn.com 3/28/2007 11:57:52 AM >>> I need to build a "find all locations with X miles of zip code xxxxx" feature. I understand that I need the ability to translate zip codes into longitude latitude and then back again. In ASP.NET, does anyone know if there is an existing class available? I've been searching MSDN with no luck, but it's possible I don't know where or how to look. I know there are 3rd party tools which do this, and that might be an option after exhausting the "free" option. Thanks, Casey -- * * Please support the community that supports you. * * http://evolt.org/help_support_evolt/ For unsubscribe and other options, including the Tip Harvester and archives of thelist go to: http://lists.evolt.org Workers of the Web, evolt !