Hi All !The installation error I've descibed occured on WindowsXP with installed Visual Studio 2005 Team Edition (SP1).The bug ?It seems that the installation error is thrown because the infragistics installer does not check (correctly) the ASP.NET prerequisite of the installed Visual Studio 2005 ! In my Visual Studio 2005 Team Edition (SP1) installation I did not install any ASP.Net features, while installing the complete NetAdvantage NET 20073 CLR20 (no custom installation).How to fix:I've fixed the installation error by running a custom installation of NetAdvantage NET 20073 CLR20 with no selected ASP.Net features.By the way:In the future it would be nice, if the Infragistics installer writes a detailed installation log file for better checking the installation process

Claus