Cancelling a Windows service installation/Uninstallation with the Windows Installer causes service to be incompletely installed/uninstalled

孤人 提交于 2019-12-02 06:14:27

First make sure that you've done all the custom action service installer nodes, in particular have the Commit and Rollback node custom actions populated. These custom actions all work together, so if you have missed one of them that could cause the problem. In theory, canceling the uninstall should have noted that the service is no longer installed, and it should be re-installed.

If that's not the issue, then it's probably a bug. The most useful thing you can do to fix it is to override base.Uninstall() in the installer class and add some code to check the service is actually installed before calling base.Uninstall().

Visual Studio setup projects are the only ones that use code to install services, and they are custom actions to call installer class methods. Everyone else uses the ServiceInstall and ServiceControl tables supplied by Windows Installer.

Some of the options you can use if you don't want to completely switch to another tool such as WiX are:

  1. The ServiceControl and ServiceInstall tables aren't too complicated if you know something about services. If you scroll down from here to the paragraph about Visual Studio and installing services there's an article and a program to help with that:

http://www.installsite.org/pages/en/msi/tips.htm

  1. You could dive into WiX enough to create a merge module that will install the services, together with any start/stop actions required. Then merge that merge module into your Visual Studio setup. No custom actions are required (and install classes are custom actions so you don't need them).

MSVS Installers & Custom Actions: You are using the Microsoft Visual Studio 2017 Installer Projects? They are very limited. The use of custom actions for service installation is one symptom of this. The use of custom actions in general is a very error prone approach (might be an over the top write-up), and for service installation it is almost never the right approach. Get rid of custom actions whenever you can and your deployment failure rate will drop.

Built-In Service Installation Features: You should use the built-in service installation features of Windows Installer (ServiceInstall and ServiceControl tables - which you seem familiar with), and there are a number of tools that can help you do this. Here are some alternative tools (free and commercial) that you can use. WiX does the job nicely, but does have a learning curve.


Service State: I would reboot in your case, to get rid of the service's current error state. It might be in some odd state pending deletion that could cause weird test results. I never take the time to investigate such issues properly, instead prefering to try and eliminate them by a simple reboot to get rid of the error state. Then do the deployment right with built-in features and that error state should never occur. A problem removed is ten problems solved? ( wishful thinking :-) ).


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