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

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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 here http://msdn.microsoft.com/en-us/library/ms137789.aspx

that i need to update my registry. Only entry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\100\SSIS\ServiceConfigFile is (Default) with no value.

what i must add in registry that i will not get this error any more?