r.a.d.upload Ajax callback error. Source url was not found

[Debu]

Hi,

Please note that We had move a website from window server 2003 - iis 6 to window server 2008 R2 (64 bit OS) - iis 7. Now, we get a popup with this error as mentioned below:

r.a.d.upload Ajax callback error. Source url was not found:

/Telerik.RadUploadProgressHandler.aspx?RadUrid=784e4743-7fcf-4064-afd8-7020d8f51a0f

Did you register the RadUploadProgressHandler in web.config?Please, see the help for more details: RadUpload 2.0 - Using r.a.d.upload - Configuration - RadUploadProgressHandler.

We have changed the web.config as mentioned in the link below, still the error message shows up

http://www.telerik.com/help/aspnet-ajax/upload-configuration.html

Please do let us know what else needs to be done.

Regards,

Debu