I am attempting deployed an ASP.Net application to a W2k3, 64 bit production server and received an error message such as: "Could not load file or assembly 'System.Web.Extensions, Version=3.6.0.0, Culture=neutral ...."

The 3.5 framework is installed but not VS 2008.

The obvious nex step was to download the Microsoft AJAX Library 3.5  from Microsoft ASP.NET web site and run it on the live server. The required .dll files would then be inserted into the GAC. The instalation seems to run successfully, however the 3.6 version of System.Web.Extensions is still not in the GAC, and my website fails with the following error: "Could not load file or assembly 'System.Web.Extensions, Version=3.6.0.0, Culture=neutral".  My app can't load ASP.NET 3.5 Extensions libraries witn product version 3.5... and 3.6....:

• System.Web.Extensions.dll   ( file version 3.6.xxxxx.x.);
• System.Web.Extensions.Design.dll ( file version 3.6.xxxxx.x.);
• Microsoft.Data.WebClient.dll ( file version 3.5.xxxxx.x)
• Microsoft.Data.Web.dll ( file version 3.5.xxxxx.x.)
• Microsoft.Data.Web.Design.dll ( file version 3.5.xxxx.x)

The Quick Solution is to place a copy of these files in the application’s ‘Bin’ folder of the target application on the production server.