Event ID 274 Microsoft SSIS Service: 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. (Microsoft SQL Server 2008 x64)

Resolution for SQL Server 2008 R2:
1) Update registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\100\SSIS\ServiceConfigFile with value C:\Program Files\Microsoft SQL Server\100\DTS\Binn\MsDtsSrvr.ini.xml
2) File content:

<?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>.</ServerName>
 </Folder>
 <Folder xsi:type="FileSystemFolder">
 <Name>File System</Name>
 <StorePath>..\Packages</StorePath>
 </Folder>
 </TopLevelFolders>
 </DtsServiceConfiguration>

Cheers!
Sanjay

Collect MS SQL Server basic configuration info

select @@SERVERNAME
go
select @@VERSION
go
xp_msver
go
sp_configure 'show advanced options',1
go
reconfigure
go
sp_configure 
go
SELECT * FROM sys.dm_os_cluster_nodes 
go
SELECT SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [CurrentNodeName] 
Go
SELECT sqlserver_start_time FROM sys.dm_os_sys_info

Cheers!
Sanjay