I get constent errors when modules do call back related to the httpmodule using response.write and if I remove the hack the errors stop
i am using dnn 04.05.01

and version 01.00.23 of your module

the error during update panel update is

sys.webforms.pagerequestmanagerparsererrorexception .........

The Error message is a javascript dialog box with this in it.

Sys.WebForms.PageRequestManagerParserErrorException: The mesage recieved from the server could not by parsed. Common

causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules,

or server trace is enabled.
Details: Error parsing near 'r>
   </table></td>
  </tr>
 </table>'.

I am using

DNN  04.05.01
DSLocalizator 01.00.23
Survey Module set to partial render..  or a Custom module that uses Update Panel.
I also use Anthem a lot and there is no error during call backs when using Anthem.

This is a snippet from the web config

 <!-- HttpModules for Common Functionality -->
    <httpModules>
      <!-- add name="Authentication" type="DotNetNuke.HttpModules.AuthenticationModule,

DotNetNuke.HttpModules.Authentication" / -->
      <add name="Compression" type="DotNetNuke.HttpModules.Compression.HttpModule,

DotNetNuke.HttpModules.Compression" />
      <add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules.UrlRewrite" />
      <add name="Exception" type="DotNetNuke.HttpModules.ExceptionModule, DotNetNuke.HttpModules.Exception" />
      <add name="UsersOnline" type="DotNetNuke.HttpModules.UsersOnlineModule, DotNetNuke.HttpModules.UsersOnline" />
      <add name="DNNMembership" type="DotNetNuke.HttpModules.DNNMembershipModule,

DotNetNuke.HttpModules.DNNMembership" />
      <add name="Personalization" type="DotNetNuke.HttpModules.PersonalizationModule,

DotNetNuke.HttpModules.Personalization" />
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0,

Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </httpModules>

Sys.WebForms.PageRequestManagerParserErrorException: The mesage recieved from the server could not by parsed. Common

causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules,

or server trace is enabled.
Details: Error parsing near 'r>
   </table></td>
  </tr>
 </table>'.

Try removing text replacements and whitespace filters for a moment and try again.