Question

I have a .Net Windows service. I want to create an installer to install that windows service.

Basically, it has to do the following:

1. Pack installutil.exe (Is it required?)
2. Run installutil.exe MyService.exe
3. Start MyService

Also, I want to provide an uninstaller which runs the following command:

installutil.exe /u MyService.exe

How to do these using Inno Setup?

Answer 1

You don’t need installutil.exe and probably you don’t even have rights to redistribute it.

Here is the way I’m doing it in my application:

using System;
using System.Collections.Generic;
using System.Configuration.Install; 
using System.IO;
using System.Linq;
using System.Reflection; 
using System.ServiceProcess;
using System.Text;

static void Main(string[] args)
{
    if (System.Environment.UserInteractive)
    {
        string parameter = string.Concat(args);
        switch (parameter)
        {
            case "--install":
                ManagedInstallerClass.InstallHelper(new string[] { Assembly.GetExecutingAssembly().Location });
                break;
            case "--uninstall":
                ManagedInstallerClass.InstallHelper(new string[] { "/u", Assembly.GetExecutingAssembly().Location });
                break;
        }
    }
    else
    {
        ServiceBase.Run(new WindowsService());
    }
}

Basically you can have your service to install/uninstall on its own by using ManagedInstallerClass as shown in my example.

Then it’s just matter of adding into your InnoSetup script something like this:

[Run]
Filename: "{app}\MYSERVICE.EXE"; Parameters: "--install"

[UninstallRun]
Filename: "{app}\MYSERVICE.EXE"; Parameters: "--uninstall"