Configure network access and security between vRealize Automation and your Microsoft SQL Server instance using Microsoft Distributed Transaction Coordinator (MSDTC). MSDTC coordinates transactions that update two or more transaction-protected resources, such as databases, message queues, file systems. These transaction-protected resources may be on a single computer, or distributed across many networked computers.


  1. Log in to the Microsoft SQL Server virtual machine as an administrative account using a Remote Desktop Protocol (RDP) client.
  2. From the Start menu, click Run, type comexp.msc in the Open text box, and click OK.
    The Component Services manager displays. Component Services lets you manage Component Object Model (COM+) applications.
  3. In the navigation tree, select Component Services > Computers > My Computer > Distributed Transaction Coordinator > Local DTC.
  4. Right-click Local DTC and click Properties.
    The Local DTC Properties dialog box displays.
  5. Click the Security tab in the Local DTC Properties dialog box.
  6. In the Security tab, configure the following values, and click OK.
    Setting Value
    Network DTC Access Selected
    Allow Remote Clients Selected
    Allow Remote Administration Selected
    Allow Inbound Selected
    Allow Outbound Selected
    Mutual Authentication Required Selected
    Enable XA Transactions Deselected
    Enable SNA LU 6.2 Transactions Selected
    Account Leave the default setting (NT AUTHORITY\NetworkService)
    Password Leave blank
  7. Click Yes to restart the MSDTC Service, click OK to confirm that the service has successfully restarted, and close the Component Services manager.