It looks like my web host made some changes to my web.config, as the version that is currently on my site is not the same as I put there..  I am wondering what they did and why.  I asked them, but they take forever to answer sometimes.

I am wondering what these sections do.

They removed this section:

    <handlers accessPolicy="Read, Write, Script, Execute">
      <remove name="WebServiceHandlerFactory-Integrated" />
      <remove name="ScriptHandlerFactory" />
      <remove name="ScriptHandlerFactoryAppServices" />
      <remove name="ScriptResource" />
      <remove name="Channels" />
      <remove name="Channels_Word" />
      <remove name="ClientDependency" />
      <remove name="SpellChecker" />
      <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" preCondition="integratedMode" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add verb="*" name="Channels" preCondition="integratedMode" path="umbraco/channels.aspx" type="umbraco.presentation.channels.api, umbraco" />
      <add verb="*" name="Channels_Word" preCondition="integratedMode" path="umbraco/channels/word.aspx" type="umbraco.presentation.channels.wordApi, umbraco" />
      <add verb="*" name="ClientDependency" preCondition="integratedMode" path="DependencyHandler.axd" type="ClientDependency.Core.CompositeFiles.CompositeDependencyHandler, ClientDependency.Core " />
      <add verb="GET,HEAD,POST" preCondition="integratedMode" name="SpellChecker" path="GoogleSpellChecker.ashx" type="umbraco.presentation.umbraco_client.tinymce3.plugins.spellchecker.GoogleSpellChecker,umbraco" />
    </handlers>

and added this section (I XXX out the username password, not sure what it is but since it is under security I thought maybe better to not share it!)

<security>
 <authentication>
        <anonymousAuthentication userName="XXXXXXX" password="[enc:AesProvider:XXXXXXXXXXXXX:enc]" />
   </authentication>
</security>

Thanks!