EnterpriseServicesInteropOption，NHibernate和Win7的问题

Question

i have an application development framework 2.0, NHibernate and Oracle. Everything works well in Win Server 2003/2008 and Win XP, but I changed my SO Win XP to Win 7 and the problems started. All my transactions stopped working, only operations with EnterpriseServicesInteropOption.Full.

I don't have any ideia what config I need to do in Win 7, because with Win XP worked.

below a stretch of code, when save de object I receive an OracleException:

Oracle.DataAccess.Client.OracleException Unable to enlist in a distributed transaction

TransactionOptions options = new TransactionOptions();
options.Timeout = new TimeSpan(0, 5, 0);
options.IsolationLevel = IsolationLevel.ReadCommitted;
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, options, EnterpriseServicesInteropOption.Full))
{                       
       // Problems here
   classDao.Save(class);

   scope.Complete();
}

Answer 1

TransactionScope will open a distributed transaction if needed.

Distributed transactions require msdtc to be running on the server!

You can check if it is running by doing the following ( taken from here )

You need to check if msdtc service is running (by default it's disabled). Open a command prompt (admin) and run: net start msdtc. Next you need to configure msdtc to allow network transactions, Start | Run -> comexp.msc Then dig down until you get to Distributed Transaction Coordinator, right click on Local DTC and select properties. Go to security tab and enable network transactions and XA transactions.