MSDTC HR=0x80000171

http://social.technet.microsoft.com/Forums/windowsserver/en-US/eb8835d9-5f5b-4df2-8c68-4a61d5e44d6b/problem-with-msdtc?forum=winservergen

icacls c:\windows\system32\msdtc\msdtc.log /grant "networkservice":F