Debug windows service vb net 2010

You can later remove this dummy service after debugging is successful. This article covers debugging a service that's running on the local computer, but you can also debug Windows Services that are running on a remote computer. See Remote Debugging. Debugging the OnStart method can be difficult because the Services Control Manager imposes a second limit on all attempts to start a service. For more information, see Troubleshooting: Debugging Windows Services. To get meaningful information for debugging, the Visual Studio debugger needs to find symbol files for the binaries that are being debugged.

If you are debugging a service that you built in Visual Studio, the symbol files. If you are debugging a service that you didn't build, you should first find symbols for the service and make sure they can be found by the debugger. See Specify Symbol.

If you're debugging a system process or want to have symbols for system calls in your services, you should add the Microsoft Symbol Servers. See Debugging Symbols. Install your service.

For more information, see How to: Install and Uninstall Services. For more information, see How to: Start Services. On the menu bar, choose Attach to Process from the Debug or Tools menu.

In the Available Processes section, choose the process for your service, and then choose Attach. Access the Services Control Manager and manipulate your service, sending stop, pause, and continue commands to hit your breakpoints. Also, see Troubleshooting: Debugging Windows Services. Attaching to the service's process allows you to debug most, but not all, the code for that service.

For example, because the service has already been started, you cannot debug the code in the service's OnStart method or the code in the Main method that is used to load the service this way. One way to work around this limitation is to create a temporary second service in your service application that exists only to aid in debugging. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing.

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Continued use of the site after the effective date of a posted revision evidences acceptance. Service registration When developing a Windows Service using C , as per most. This is shown in the code sample below. Run service ; After the code calls the Run method, a dialog box similar to the following will appear. Service installation Before moving on to the next section, if you do want to install your Windows Service there are two main options. InstallUtil Firstly, you can use InstallUtil , as recommended by the dialog box message shown further above.

The InstallUtil executable is usually found at the following location. Debug service method Probably the easiest option for adding debugging support to a Windows Service is to create a debugging entry point method in the service class we have implemented.

We can then control access to the debugging entry point via a conditional compiler pragma check. OnDebug ; Thread. Sleep Timeout. Run service ; endif Note the code highlighted in grey. The above code first of all creates a new instance of our service object. The OnDebug method within the service class is implemented as follows.

The OnStart method is defined as follows. WriteLine "Service started! User interactive mode check A slight variation on the previous approaches is to check if the current process is running in user interactive mode , rather than relying on compiler constants.

This code is much simpler than the compiler pragmas and Conditional attributes. To debug a running Windows Service, first of all, make sure that your service has been started. Summary In summary, I have explained how Windows Services are hosted by the Service Control Manager, making them less straightforward to debug compared to standard Windows and Console applications.

Let me know what your favourite approach is in the comments! I hope you enjoyed this post! Comments are always welcome and I respond to all questions. Monitoring application debug output with DebugView. Comments Comment Cancel reply.