Event log warning Registry setting specifying configuration file does not exist

Microsoft SSIS Service: 
Registry setting specifying configuration file does not exist. 
Attempting to load default config file.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

this is my MsDtsSrvr.ini.xml

<?xml version="1.0" encoding="utf-8"?>
<DtsServiceConfiguration xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <StopExecutingPackagesOnShutdown>true</StopExecutingPackagesOnShutdown>
  <TopLevelFolders>
    <Folder xsi:type="SqlServerFolder">
      <Name>MSDB</Name>
      <ServerName>.\SQL2008</ServerName>
    </Folder>
    <Folder xsi:type="FileSystemFolder">
      <Name>File System</Name>
      <StorePath>..\Packages</StorePath>
    </Folder>
  </TopLevelFolders>
</DtsServiceConfiguration>

I found MSDN that I need to update my registry. But the only entry at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\100\SSIS\ServiceConfigFile
is (Default) with no value.

What must I add in registry so that I do not get this error any more?