This is a brand new, clean install (6.3), so I tried option 2.  No luck.

 

Initially, I tried this:

<httpHandlers>

      <clear />
      <add verb="*" path="*.ashx" type="System.Web.UI.SimpleHandlerFactory, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
      <add verb="GET" path="FtbWebResource.axd" type="FreeTextBoxControls.AssemblyResourceHandler, FreeTextBox"/>
  </httpHandlers>

 

That rendered an error that it didn't know how to "GET".  Then I tried this:

<httpHandlers>
      <add verb="*" path="*.ashx" type="System.Web.UI.SimpleHandlerFactory, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
      <add verb="GET" path="FtbWebResource.axd" type="FreeTextBoxControls.AssemblyResourceHandler, FreeTextBox"/>
</httpHandlers>

 

Same syntax error.
Thanks,

-Tim