Today I fought a real battle with the DTC and System.Transactions (distributed transactions).Turning off the firewall of-course allows the stuff to work without problems; it is however not a desired solution.I initially was under the impression that allowing port 135 in the Windows Firewall was sufficient; this is however not the case. Allow the %windir%\System32\msdtc.exeto go through the firewall by means of the Firewall UI or via this command: “netsh firewall set allowedprogram %windir%\system32\msdtc.exe MSDTC enable”.A great post on the subject is found here:
http://blogs.msdn.com/florinlazar/archive/2004/06/18/159127.aspTechnorati Tags: Security
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