ajax not working, probably due to url routing

I intend to incorporate ajax into my website project (not webapp proj, ver .4).

it's not working at all.

i noticed the html generated have url to access /WebResource.axd?... and /ScriptResource.axd?....

My web is handled by url routing coding. when i manually attempt to access these file/resources, I'm being routed to homepage, as dictated by my routing code.

looks like I need to explicit set something in web.config.

I only able to google a web.config but it's for ajax ver 1, and i tried it with bunch of errors.

there's no clear documentation for Ajax ver 4.1.60919 .