Use AJAX Extension without using the ASP.Net AJAX Enables Web Site Template

I'm developing a web app using a CMS and I want to use the ASP.Net AJAX Extension. Since I'm using a CMS, I cannot use the VS template.

I tried referencing the DLLs but I'm getting a 'Sys' is undefined javascript error.

Hi ubelt,

If you are not using a template, you will have to manually update your web.config file with all the setting required for AJAX, that's why you are getting this error.
In the documentation you can find exactly how to do it.

Hope this helps,

Juan