Run the Component Services MMC snap-in: Start -> Administrative Tools ->
Browse to: Console Root -> Component Services -> Computers -> My Computer
Select the "MSDTC" tab. On the bottom of the tab page, click the "Security
Configuration" button. A new dialog will open. Just click "OK" to close the
dialog (I believe this may set the MSDTC defaults). Then click "OK" to close
the first dialog and try restarting the MSDTC service and see if the warnings
Then as a test, restart MSDTC (net stop msdtc && net start msdtc) and check
the application event log. You should not see any warnings as before.