Receiving a “Page Cannot be Found” 404 error when attempting to browse to the SmartConnect.asmx page in IIS. This occurs after correctly configuring the SmartConnect directory to use ASP.NET 2.0 in its properties window.
ASP.NET extensions may not be allowed in IIS manager. To enable the extension, open IIS manager and expand the object browser until you can see the Web Service Extension folder. Once you select the Web Service Extension folder in the object browser, you should see a list of extensions in the main window. Select the ASP.NET v2.0… extension and change its status to Allowed. Once you have changed the status to Allowed for ASP.NET extensions, restart IIS for the changes to take effect.
