AjaxControlToolkit cannot run on my win 2003 server

Did you deploy all the required files to your win2k3 server box? including the ASP.NET extensions and the toolkit libraries?
 

 Hi Jimmy,

Thank you for your reply. Yes I did. Actually, I deployed the website to two server and the other server is works well. I did not find the difference between the IIS configuration on these two servers. Could you please give some guide or some thing help? Thank you very much.

The only thing I can think of based on your description of the error is missing some dependencies.

The websites works but only the toolkit fails that is why I am lead to believe it is a toolkit installation problem.

Try clearing your browsers internet temp files and see does that help, otherwise if both machines are configured the same and has the same deployment conditions then I cannot see where the error is coming from. 

Thanks again,

I didn't install the Ajax or the toolkit, but just reference them to the bin folder. includes AjaxControlToolkit.dll,System.Web.Extensions.dll and System.Web.Extensions.Design.dll. Is there any configuration in IIS or somewhere else that I did not noticed can raise such problem.

Thanks again,

I didn't install the Ajax or the toolkit, but just reference them to the bin folder. includes AjaxControlToolkit.dll,System.Web.Extensions.dll and System.Web.Extensions.Design.dll. Is there any configuration in IIS or somewhere else that I did not noticed can raise such problem.

There is no IIS setting that the AJAX toolkit is dependant on.

To be totally sure, download the AJAX extensions MSI from MS and install that as that is a prerequisites and may not be in your BIN directory as some are deployed to the GAC.