to change aspx extension to .gt

these changes enough to change ".aspx" extension to ".gt" in our application changes in web.config file add these

add entry in

//add extension=".gt" type="System.Web.Compilation.PageBuildProvider" //

in
buildProviders

then add

//add path="*.gt" verb="*" type="System.Web.UI.PageHandlerFactory" validate="true" //

entry in
httpHandlers

then change all .aspx extensions to .gt in our application. now .gt will work as .aspx