Avant Browser backup plugin only works with Backup4all.

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If you already have Backup4all, you can add the Avant Browser backup plugin below.

Download plugin as XML file
Avant is a free web browser that is based on the core of Internet Explorer, however it offers more features that lack in IE. Once installed this backup plugin will allow backing up the Avant Browser profiles, skins, languages and registry entries.

Raw Plugin (XML) Code: Avant-Browser.xml

<?xml version="1.0" encoding="UTF-8"?>
<b4asource version="1.0">
  <!--Program unique ID (GUID)-->
  <!--Program name-->
  <name>Avant Browser</name>
  <!--Executable file path-->
  <exepath type="0"/>
  <!--Minimum and maximum versions for which the backup was tested-->
  <!--Information about the plugin author-->
  <!--Variables used in the XML file-->
    <!--If type="reg" then the value will be read from the registry-->
    <variable name="path" type="reg">HKEY_CURRENT_USER\Software\Avant Browser\InstallPath</variable>
  <!--The backup sources-->
    <source name="Profiles" type="folder">
      <folder>%appdata%\Avant Profiles</folder>
    <source name="Skins" type="folder">
    <source name="Language" type="folder">
    <source name="Registry" type="registry">
      <registry path="HKEY_CURRENT_USER\Software\Avant Browser" recursive="true"/>