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Microsoft Distributed Transaction Co-ordinator
Microsoft Distributed Transaction Coordinator
The Distributed Transaction Coordinator (DTC) coordinates transactions that span multiple resource managers, such as databases, message queues, and file systems. You can check to see if the DTC is installed by finding Distributed Transaction Coordinator in your list of Windows services in the Services Control Panel applet.
How to find the list of installed Windows services
To find the list of your Windows services you need to look in the Services Control Panel applet.
1.
In Windows, press the Start button.
2.
Click Control Panel on the start menu.
3.
In the Control Panel window, make sure you are in Classic View. The option to switch to Classic View (if applicable) will appear at the top left hand side of the Control Panel.
4.
In the Control Panel window, open Administrative Tools.
5.
In the Administrative Tools window, open Services. If you have User Access Control turned on, you will be prompted to give Windows the permission to continue. It is safe to give this permission.
Here you will find a list of installed Windows services and their status.
The DTC is correctly installed and configured if its Startup Type is set to anything other than Disabled. If it is marked Disabled, please switch it to Manual.
How to change the Startup Type of a Windows Service
To change the Startup Type of a Windows Service first of all locate the service in the Service Control Panel applet.
1.
Double click the Windows service you wish to alter. This will open the Properties window for the service.
2.
Make sure you are on the General tab.
3.
Locate the Startup type drop down.
4.
Change the Startup type to the desired option using the drop down.
o
Manual – User interaction or another process can manually start the service at any time.
o
Automatic – Windows will start the service when the computer starts.
o
Disabled – User interaction or another process cannot start the service at any time.
o
Automatic (Delayed Start) – Not available on all versions of Windows – Windows will start the service when the computer starts after all the Automatic services have started.
If you cannot find the Distributed Transaction Coordinator in your list you need to install it.
How to install the Distributed Transaction Coordinator
To install the Distributed Transaction Coordinator we need to use the Windows Command Line.
Microsoft Windows XP or Windows Server 2003
1.
In Windows, press the Start button.
2.
Select All Programs from the Start menu.
3.
Select Accessories on the All Programs menu.
4.
Select the Command Prompt on the Accessories menu.
5.
Follow the instructions below for all versions of Windows.
Microsoft Windows Vista or Server 2008
1.
In Windows, press the Start button.
2.
In the Start Search text box at the bottom left of the Start menu, type “Command Prompt”.
3.
Locate the Command Prompt application icon that appears at the top of the Start menu.
4.
Right-click the Command Prompt application icon and select Run as administrator. If you have User Access Control turned on, you will be prompted to give Windows the permission to continue. It is safe to give this permission.
5.
Follow the instructions below for all versions of Windows.
For all versions of Windows
1.
Inside the Command Prompt window, type the following commands followed by the [ENTER] key at the end of each line.
%systemdrive%
cd %systemroot%
cd system32
msdtc –install
2.
The Command Prompt window will not give you any feedback if there has been a successful install.
3.
Check to see if the Distributed Transaction Coordinator has appeared in the Service Control Panel applet and that the Startup Type is not Disabled. See the main guide for these steps.
