Share via

Enable Network DTC Access

Applies To: Windows Server 2008

Use this procedure to enable network DTC access.

You can use this procedure to enable network DTC access on Windows 7 or Windows Server 2008 R2. This procedure should be followed to allow remote computers to be enlisted in Microsoft Distributed Transaction Coordinator (MSDTC) transactions over the network.

Membership in the local Administrators group, or equivalent, is the minimum required to complete this procedure.

To enable network DTC access and configure Windows Firewall on Windows 7 or Windows Server 2008 R2

  1. Click Start, click Run, type dcomcnfg and then click OK to open Component Services.

  2. In the console tree, click to expand Component Services, click to expand Computers, click to expand My Computer, click to expand Distributed Transaction Coordinator and then click Local DTC.

  3. Right click Local DTC and click Properties to display the Local DTC Properties dialog box.

  4. Click the Security tab.

  5. Set the following options on the Security tab of the Local DTC Properties dialog box and click OK.

    Configuration Option Default Value Recommended Value

    Network DTC Access



    Client and Administration


    Allow Remote Clients



    Allow Remote Administration



    Transaction Manager Communication


    Allow Inbound



    Allow Outbound



    Mutual Authentication Required


    Enabled if all remote machines are running Windows Server 2003 SP1 or XP SP2 or higher.

    Incoming Caller Authentication Required


    Enabled if running MSDTC on cluster.

    No Authentication Required


    Enabled if remote machines are pre-Windows Server 2003 SP1 or pre- Windows XP SP2.

    Enable TIP


    Enabled if running the BAM Portal.

    Enable XA Transactions


    Enabled if communicating with an XA based transactional system such as when communicating with IBM WebSphere MQ using the MQSeries adapter.

  6. Open the Control Panel, open Windows Firewall, and click Change settings to display Windows Firewall Settings.

  7. Click the Exceptions tab.

  8. Check the box for Distributed Transaction Coordinator and click OK.

Additional considerations

Additional references