Hello Peter,
Actually, from the MSDN document
http://msdn.microsoft.com/en-us/library/ms973805.aspx, we can see that the
ClickOnce does not support installing the .Net Windows Services. We have
to
implement the self update logical by ourselves. The following is my simple
solution for this objective.
Firstly, I describe the scenario of my solution,
1.A .net Windows service named service.exe located at c:\services\
2.A folder named c:\services\updates stores the new version of a .net
Windows service
3.Now, you have a new version of the above mentioned service named
newservice.exe
4.An app named serviceupdate.exe is located at c:\services\ for updating a
services automatically
Now, the solution is described as the following steps:
1.Creating an instance of FileSystemWatcher to listen to the change of
file
system, the code looks like:
private void IntializeFileSystemWatcher()
{
System.IO.FileSystemWatcher newexe = new System.IO.FileSystemWatcher(
"c:\\services\\Updates", "newservice.exe");
//other codes are described in step 2
}
protected override void OnStart(string[] args)
{
IntializeFileSystemWatcher();
}
2.Listen to the Created or Changed event of the FileSystemWatcher
instance,
the code looks like:
//the following code is put in the method IntializeFileSystemWatcher()
newexe.Created += new FileSystemEventHandler(NewExecutable);
newexe.Changed += new FileSystemEventHandler(NewExecutable);
newexe.EnableRaisingEvents = true;
private void NewExecutable(object source, FileSystemEventArgs e)
{
Process.Start("c:\\services\\serviceupdate.exe","service",
"newservice");
}
The above code listen to the changed and created event. When the event
occurs, serviceupdate.exe will be called to automatically update services.
3.Creating the serviceupdate.exe app. The app is a simply console
application that is used to stop the old service, replace the service file
and then restart new service. The code looks like:
static void Main(string[] args)
{
if (args.Length == 0)
return;
string oldname = args[0];
string newname = args[1];
System.ServiceProcess.ServiceController target = new
System.ServiceProcess.ServiceController(oldname);
target.Stop();
while(target.Status
!=System.ServiceProcess.ServiceControllerStatus.Stopped)
{
target.Refresh();
}
Thread.Sleep(2000);
File.Delete("c:\\services\\" + oldname + ".exe");
File.Move("c:\\services\\Updates\\" + newname + ".exe", "c:\\services\\"
+ newname + ".exe");
target.Start();
}
Serviceupdate.exe needs two parameters. The first one is the name of old
services that is located at c:\seriveces in the solution. The second one
is
the name of new services that is located at c:\services\updates in the
solution. Of course, you can set the same name for the old and new service
because they are in different folder.
Another solution is to create a separate AppDomain for each unique
managed
service assembly and use Remoting to create and control the managed
service's IService implementation. There are two nice articles related to
this topic here.
http://www.15seconds.com/issue/040624.htm
http://www.15seconds.com/issue/040817.htm
Please let me know if these help for your scenario. If you have any future
questions or concerns, please let me know.
Best regards,
Ji Zhou (
[email protected], remove 'online.')
Microsoft Online Community Support
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