What controls the version of ASP.NET that is used during an AJAX request? I have an issue where on a local environment the response is contained in “.d” while on a different environment the response is not in “.d.”
Having read http://encosia.com/never-worry-about-asp-net-ajaxs-d-again/ I know a possible solution and I am assuming that the difference between environments is the ASP.NET version being run. Instead of implementing the datafilter fix I'd like to know what I should be changing on the environment to have the response be in ".d" I checked the web.config and see that it does say 3.5 as the version for System.Web.Extensions, Version=3.5.0.0.
What should I be checking?
The version of System.Web.Extensions should be responsible for that. Both the HttpModule that handles WebMethods in ASPX pages and the HttpHandler that augments ASMX services with the same functionality use System.Web.Extensions.
Check the references in the project. If the older version of the assembly is referenced, it could still pull that from the GAC even if 3.5 is mentioned in the web.config.
You might also try using bindingRedirect force the older version not to be used.