如何使用自定义卸载程序卸载Windows服务

Question

We have many questions on stackoverflow regarding uninstallation of Windows Service.
After trying all of them I still fail to uninstall the windows service on new version Installation.

I use setup and deployment project to install/uninstall my project which has a windows service and some other projects.

During installation of newer version, all other projects are successfully re-installed but windows service project fails to Re-install and says:

Error 1001: The specified service already exists.

I referred this link and tried to add code to my Install custom action to Stop the service. If I understood the answer in this link correctly, I have put the code to stop the service inside projectInstaller.cs file of the Service:

public override void Install(IDictionary stateSaver)
{ 
      ServiceController sc = new ServiceController("SareeManagerNotifications");
      if (sc.Status == ServiceControllerStatus.Running)
          sc.Stop();
     base.Install(stateSaver);
}

Custom action pane looks like:

Where the highlighted part is the Service.

I also went through this answer which says to set custom action condition as
NOT PREVIOUSVERSIONSINSTALLED .

This doesn't work for me. Where am I going wrong ?

Thanks in advance :)

Answer 1

Try the following steps while editing the windows service:

1. Right click your SetupProject from visual studio and select custom actions from view .

2. You will find 4 custom actions install,commit,rollback and uninstall . Right click on each of these actions one after the other and add a custom action

3. After doing so you will find a select item in project window. In the window select Application folder from look in dropdown. This will list the primary output from windows service , select this and click ok.

4. Save and build the setup project.

Hope this will solve your issue....

Answer 2

Usually this is done through service control operations . Basically, you need the Stop and Delete flags set for uninstall.

Another approach would be to use ServiceInstaller.Uninstall to remove the service.