Jan 08, 2018 06:39 AM|Brando ZWZ|LINK
Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
According to your error message, I suggest you could firstly try to install the ASP.NET 2.0 AJAX 1.0 , which in turn installed the missing System.Web.Extensions,
Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 in the GAC.