Echelon LNS DDE Server - Manual (Page 37)

applications, for example Microsoft Excel, this means prepending the computer name
to the application name as in the example,
=\\MYCOMPUTER\LNSDDE|'MyNet.Subsystem 1.DevNV'!'MyDev.NV2'. Always
specify the computer name when the LNS DDE Server is running as a service.
While the LNS DDE Server is running as a service, it is not possible to start the LNS
DDE Server as a normal desktop application. You also cannot start the LNS DDE
Server as a service if it is already running as a desktop application. In both cases,
the second instance of the server will discover that there is already another instance
of it that is running. When this happens, a message is displayed indicating only one
instance of the server is allowed. When running as a service, the LNS DDE Server
can be configured to interact with the user desktop, providing the same interface as
is available when running as a desktop application.
To configure the LNS DDE Server to run as a service, follow these steps:
1. Select
Server from the LNS DDE Server's Configure menu. The Server
Configuration Menu will open.
2. Check the Run as Windows NT Service option and click OK. The LNS DDE
Server will be installed as a service that will start up automatically when the
computer is restarted. To start running the LNS DDE Server as a service
immediately, continue to Step 3.
3. Close the current instance of the LNS DDE Server.
4. Open a DOS prompt and enter the following command:
NET START LNSDDE
To stop the LNS DDE Server from running as a Service without restarting the
PC, open a DOS prompt and enter the following command:
NET STOP LNSDDE
The Run as Windows NT Service option will be disabled if the current user does not
have privileges to control services on the PC (i.e. Users with Administrator privileges
or who have specifically been granted privileges to control services).
Write Messages to the Event Log
When the LNS DDE Server is running as a service, the messages that are otherwise
displayed in the logging pane may optionally be written to the Windows NT Event
Log. The contents of the Event Log may be viewed with the Event Viewer
application found in the Administrative Tools folder. By enabling this option the
server will write the same messages that it otherwise displays in the logging pane to
the Event Log.
Note: This option is only available if the Run as Windows NT Service option is set,
and the LNS DDE Server is running on Windows XP, Windows 2000, or Windows NT
4.0.
LNS DDE Server User's Guide 3-5