Summary
After installing InstantKB.NET you may receive the following error message...
Parser Error Message: 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.
Resolution
InstantKB.NET requires the Microsoft ASP.NET Ajax Extensions. This error message indicates theese required components are not installed. You can download the ASP.NET AJAX Extensions 1.0 directly from microsfot.com at the link below...
http://www.microsoft.com/downloads/details.aspx?FamilyID=ca9d90fa-e8c9-42e3-aa19-08e2c027f5d6&displaylang=en
Once installed InstantKB.NET 2.0 should function as expected.