Through out this series of tutorials we’ll learn how to create a Windows service project in C#, how to install it, how to debug an installed Windows service and how control a windows service from an application. This is a three series tutorials on Windows service. In the first part of this ‘Window Service’ tutorial series, we learned about how to create a Windows service project. In this part we’ll learn how to install the service and how to debug it. In the last part we’ll learn how to control a service from another client application. Here ‘controlling a service’ means starting, stopping, sending commands to a service.
The job of the service will be to monitor the directory of the service’s exe for any file/folder creation during the service running. The service will keep a list of paths of items (file/folder) that will be created in the service’s exe directory.
Adding Installer Components and Deployment Project
First, we need to create service and process installer component which will install our service and service process in the system. To create them follow the steps…
- Double click the ‘FileWatcherService.cs’ component on the ‘Solution Explorer’. The component will be viewed in designer mode.
- Right click on the designer –> Add Installer. “ProjectInstaller.cs” component will be added in our project. The component contains two sub components — ‘ServiceInstaller’ & ‘ServiceProcessInstaller’. ser_insta_com.PNG 47.59K 14 downloads. These are the two components that will install our service and our service process to the Windows system.
- Double click the ‘ProjectInstaller.cs’ component from solution explorer and it will open in designer. Right click the ‘serviceProjectInstaller1′ component –> Properties. Change the ‘Account’ property value to ‘LocalService’ from the values combobox. serviceProcessInstaller.PNG 42.22K 15 downloads
Then we need to create a setup project which will create a MSI installer deployment package for our service. To create a deployment project, follow the steps…
- Right click on the solution node –> Add –> New Project. depl_proj.PNG 51.06K 14 downloads
- ‘Add New Project’ wizard will appear on you. Select ‘Other Project Types–>Setup and Deployment’ from the ‘Project Types’ options (left side on the wizard). Select ‘Setup Project’ template from the ‘Templates’ options (right side on the wizard). Give a name to our setup project — let us name it ‘CodeCallServiceInstaller’. And click on Ok button. Depl_Add_Proj.PNG 33.43K 14 downloads. A setup project will be created and added into our solution.
- Right click on the ‘CodeCallServiceInstaller’ project node in the solution explorer –> Add –> Project Output. add_project_out.PNG 48.43K 13 downloads
- ‘Add Project Output Group’ wizard will appear on you. Select ‘CodeCallService’ from the combobox at the op on the wizard and click OK button. select_proj.PNG 49.24K 14 downloads. Now our service is added into the setup project to setup.
- Right click on the ‘CodeCallServiceInstaller’ project node in the solution explorer –> View –> Custom Actions. Custom actions editor will be opened.
- Right click ‘Custom Actions’ node in the editor –> ‘Add Custom Action’. ‘Select Item in Project’ wizard will appear on you. cust_Act.PNG 55.29K 17 downloads
- Select ‘Application Folder’ from the combobox (or list -view) and then select ‘Primary Output form CodeCallSerice (Active)’ item. Click OK button. cust_Act2.PNG 49.76K 15 downloads
- Right click ‘CodeCallServiceInstaller’ project node on the solution explorer –> Rebuild
- Right click ‘CodeCallServiceInstaller’ project node on the solution explorer –> Install. installing.PNG 134.86K 14 downloads. We can also install it from the output (CodeCallServiceInstaller.MSI or setup.exe) of the project ‘CodeCallServiceInstaller’. Actually we need to provide these outputs of our setup project to our clients so that then can install it on their machines. installing2.PNG 40.73K 16 downloads
- Go to Windows Start Menu –> Run. Type services.msc and press Enter key. ‘Windows Service Control’ will appear on you. Try to find our service — CCFSWatcher. After selecting it, right click on it –> Start. And our service will start and the ‘onstart’ method will be called. scm.PNG 33.82K 11 downloads
- Select the service, right click on it and you will see pause, stop and other options. scm2.PNG 35.88K 10 downloads
Debugging Windows Service
To debug from visual studio, the service project must be build in ‘Debug’ mode and the debug build must need to be installed. When I was following the above steps, my project was in ‘Debug’ configuration. To debug our CCFSWatcher service, follow the steps below.
- Make sure that our CCFSWatcher is running.
- Set breakpoints in ‘onpause’, ‘OnContinue’, ‘onstop’, and in ‘_fsWatcher_Created’ event handler. debug.PNG 20.73K 11 downloads
- In Visual Studio, click ‘Debug’ menu –> ‘Attach to Process…’. ‘Attach to Process’ window will appear on you. Find and select ‘CodeCallService.exe’ from the process list and click on ‘Attach’ button. attach_process.PNG 33.18K 11 downloads. After clicking the ‘Attach’ button, the visual studio will start debugging our service project.
- To get a proof, let us pause our service from the ‘Windows Service Control’ window and you will see the the onpause method get hitted in visual studio. debug2.PNG 53.83K 10 downloads
- To debug our ‘_fsWatcher_Created’ create an empty text (or any type of) file in the directory where the service process installed. In my case the CodeCallService.exe path is ‘C:Program FilesReliSource Technologies LtdCodeCallServiceInstaller’. Note that, you need to make sure that the service is running