Running as service

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  • 031278
    #1

    Running as service

    Hello,

    I am trying to run a process continuously as a service. The process is
    to Read from a PLC and write it into a text file. But it does not work
    I dont know where the bug exists as debug is not allowed for a window
    service project. Same code if i put in a form and run as windows
    application it works. so please help me what difference it must be
    having running as service and running as application.

    thanks in advance

    s031278

    Tags: None
    • Mr. Arnold
      #2
      Re: Running as service


      "031278" <s031278@yahoo. comwrote in message
      news:1185952920 .129141.294980@ j4g2000prf.goog legroups.com...
      Hello,
      >
      I am trying to run a process continuously as a service. The process is
      to Read from a PLC and write it into a text file. But it does not work
      I dont know where the bug exists as debug is not allowed for a window
      service project. Same code if i put in a form and run as windows
      application it works. so please help me what difference it must be
      having running as service and running as application.
      >
      thanks in advance
      >
      You can attach the debugger to a Service project's code. If I recall, you
      can't debug the code on the OnStart and OnStop events, the last time I
      looked.

      http://aspalliance.com/1316_Working_with_Windows_Service_Using_Visual_Studio_2005


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        • Phill W.
          #3
          Re: Running as service

          031278 wrote:
          I am trying to run a process continuously as a service. The process is
          to Read from a PLC and write it into a text file. But it does not work
          I dont know where the bug exists as debug is not allowed for a window
          service project.
          Of course it is, you just can't modify the code while you're debugging.

          Start the service, then attach the IDE to the running process and away
          you go. If you think there's a problem in OnStart then add a fairly
          hefty Sleep() call as the first statement to give you time to attach the
          debugger.
          Same code if i put in a form and run as windows
          application it works. so please help me what difference it must be
          having running as service and running as application.
          They run in different user and security contexts.
          For example, if the service runs as the Local System account, your
          service won't know anything about the network.

          HTH,
          Phill W.

            Comment

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