Installing a Windows Service with dependencies

一个人想着一个人 提交于 2019-11-29 03:28:47

You can write a self-installing service and have it set a list of services your service depends on when the installer is executed.

Basic steps:

edit: forgot to mention that you can use e.g. Installutil.exe to invoke the installer.

[RunInstaller(true)]
public class MyServiceInstaller : Installer
{
    public MyServiceInstaller()
    {
        using ( ServiceProcessInstaller procInstaller=new ServiceProcessInstaller() ) {
            procInstaller.Account = ServiceAccount.LocalSystem;
            using ( ServiceInstaller installer=new ServiceInstaller() ) {
                installer.StartType = ServiceStartMode.Automatic;
                installer.ServiceName = "FooService";
                installer.DisplayName = "serves a lot of foo.";

                installer.ServicesDependedOn = new string [] { "CLIPBOOK" };
                this.Installers.Add(procInstaller);
                this.Installers.Add(installer);
            }
        }
    }
}

This can also be done via an elevated command prompt using the sc command. The syntax is:

sc config [service name] depend= <Dependencies(separated by / (forward slash))>

Note: There is a space after the equals sign, and there is not one before it.

Warning: depend= parameter will overwrite existing dependencies list, not append. So for example, if ServiceA already depends on ServiceB and ServiceC, if you run depend= ServiceD, ServiceA will now depend only on ServiceD.

Examples

Dependency on one other service:

sc config ServiceA depend= ServiceB

Above means that ServiceA will not start until ServiceB has started. If you stop ServiceB, ServiceA will stop automatically.

Dependency on multiple other services:

sc config ServiceA depend= ServiceB/ServiceC/ServiceD

Above means that ServiceA will not start until ServiceB, ServiceC, and ServiceD have all started. If you stop any of ServiceB, ServiceC, or ServiceD, ServiceA will stop automatically.

To remove all dependencies:

sc config ServiceA depend= /

To list current dependencies:

sc qc ServiceA

One method that's available is sc.exe. It allows you to install and control services from a command prompt. Here is an older article covering it's use. It does allow you to specify dependencies as well.

Take a look at the article for the sc create portion for what you need.

There is a dynamic installer project on codeproject that I have found useful for services installation, in general.

Visual Studio Setup/Deployment projects work for this. They are not the best installer engine, but they work fine for simple scenarios.

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