Serialisering af XML objekter

følgende xml loades fint ind og ud af mine objekter ved at bruge serialisering/deserialisering


<?xml version="1.0"?>
<Settings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Setting >
    <CompanyNumber>1101</CompanyNumber>
    <DatabaseServer>server1</DatabaseServer>
    <DatabaseName>DB1</DatabaseName>
    <SettingName>FIRMANR1</SettingName>
  </Setting>
  <CollectionOfCompanies>
    <anyType xsi:type="Setting">
      <CompanyNumber>1101</CompanyNumber>
      <DatabaseServer>server1</DatabaseServer>
      <DatabaseName>DB1</DatabaseName>
      <SettingName>FIRMANR1</SettingName>   
    </anyType>

<anyType xsi:type="Setting">
      <CompanyNumber>1102</CompanyNumber>
      <DatabaseServer>server2</DatabaseServer>
      <DatabaseName>DB2</DatabaseName>
      <SettingName>FIRMANR2</SettingName>
    </anyType>

  </CollectionOfCompanies>
</Settings>

Men hvordan skal en klasse se ud hvis der tilføjes 
<anyType xsi:type="Setting" name="testNavn" default="true">

i min XML...

eller håndterer man det på en anden måde