Window Service fails to start after changing service name - c#

I have a windows service that I wrote in Visual Studio. I was asked to change the service name, so I went into the ServiceInstaller properties and changed both the DisplayName and ServiceName properties. When I go to start the service through Windows Manager, I receive the following error:
The 'servicename' service on 'server name' started and then stopped. Some services stop automatically if they are in use by other services or programs.
The log file says:
Service cannot be started. System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. To create the source, you need permission to read all event logs to make sure that the new source name is unique.
Any help would be appreciated.
Thanks!

Apparently you did not register an event source. It is quite possible name of your event source was derived from service name, and when you changed that your service was attempting to use new event source, which was not registered.
Check in your service installer you are registering event source -- it has to be registered at the time service is installed, because it requires elevated admin permissions. See code snippets in this SO question for examples how to register that.

Related

Restart event log after installing source and log

I am using Wix and installing an event log like:
<util:EventSource Log='MyLogName' Name='MyLogSource' EventMessageFile='%systemroot%\Microsoft.NET\Framework64\v4.0.30319\EventLogMessages.dll' />
I have a service that runs and tries to log to MyLogSource after installation. It does not begin to log unless I restart my system.
However, if I create the log in C# code, I can immediately log. The C# code can be in my service OnStart()
EventLog.CreateEventSource("MyLogSouce", "MyLogName");
I have a Systems.Diagnostics.EventLog instance named eventLog in my service class that is initialized like:
eventLog .Source = "MyLogSource"; // instance variable created in InitializeComponent()
To clarify, if I use Wix to create the event source (and therefore don't use the C# code to create it), then when the service starts and starts logging, nothing goes in the log. I have to reboot and then everything works.
However, if I comment out the Wix part to create the event source and do it in C# code, then when I start logging, the data goes in the log and no restart is necessary. My service does not really depend on any other services.
Is there some kind of trick to get it to work immediately if I install using Wix? Is there some way to use a <ServiceControl /> entry for my component so that I can restart or stop and start a service so that logging works without rebooting?
Update: 28 Oct 2021
I did go digging through the EventLog source code. It does not restart any services. However, it creates two event sources when creating an event source. When creating an Event source from WiX, it just creates the one event source.
So in Wix if I'm creating MyLogSource and MyLogName, it creates just the registry entries for those items.However, in the C# source code when calling the EventLog.CreateEventSource API, with the same arguments, it does create those items, however, it also creates another event source named MyEventLog.
So, in the registry tree, there is the event log MyEventLog, but under the key are the two event sources MyEventSource and MyEventLog.

Programmatically grant local user rights to start a service with .Net

I want to implement an update service in my application (so users don't need admin rights to update my app once the service is installed, much like Google or Mozilla do their updates), and I think I found a good way to do this with WCF.
I have a WCFServiceLibrary-Project which contains the ServiceContract and the core functionality (download/install updates) and a Windows Service-Project which implements the WCFServiceLibrary as a Windows Service.
Additionally, there is a Visual Studio Installer-Project which installs the service and my application, which should be able to start/stop/communicate with the service using NamedPipes.
The service is configured to start manually with the LocalSystem-Account.
Now when the service is installed, I can start/stop it using services.msc (probably elevated), but not when I try it with net start Servicename (Error 5: Access denied) or with my application, which tells me that the local users probably don't have the permission to start/stop the service.
I need the service to run with higher permissions in order to perform the installation of updates, so I would like to give local users permission to start my service either during the first installation of the service or when the service starts for the first time (since I can trigger that also during installation).
However, how would I accomplish this with VB.NET (or C#)? I found some examples using API-Calls of advapi32.dll, but it didn't looks like the permission can be changed with this.
So, long story short, heres a summary of what I'm looking for:
Grant Group "Local Users" permission to Start my Service, best approach either during installation (Maybe with Custom Actions in Visual Studio Installer Project? Or in the ServiceInstaller-Class in the Windows Service-Project?) or the first time the service starts (OnStart-Event in Windows Service Project)
The service must not run with local user rights, since it would miss elevated privileges then which would be necessary to install updates.
I can't assign permissions through GPO/Local Policy since the users are not within our company, but all around the world. For the same reason I cannot assume that they can get an admin to elevate them everytime an update comes out.
I would like to avoid commandline calls if possible (as in assign permissions through command line, since those are most likely os-dependent)
Another solution would be to configure the Service as Automatic and Start it after install, but I don't like the idea that my service runs all the time since its only needed when my main application starts up.
Its most likely not a file permission issue. EVERYONE, SYSTEM and SERVICE got FULL ACCESS to the services folder and files in it.
There are already different similar questions here, but none did give a clear answer to this problem. One user probably did it using the WiX-Installer, but I would like to keep the Visual Studio Installer Project since it's pretty straight forward and easy to use.
After a bit more of googling and trying to find a "clean" solution, I've given up and using now Process.Start to execute sc.exe and set new Permissions after Installation.
Here's my ServiceInstaller-Class, for anyone curious:
[VB.NET]
Imports System.ComponentModel
Imports System.Configuration.Install
Imports System.ServiceProcess
<RunInstaller(True)>
Public Class SvcInstaller
Inherits Installer
Dim svcprocinst As ServiceProcessInstaller
Dim svcinst As ServiceInstaller
Public Sub New()
svcprocinst = New ServiceProcessInstaller
svcprocinst.Account = ServiceAccount.LocalSystem
svcinst = New ServiceInstaller
svcinst.ServiceName = "KrahMickeySvc"
svcinst.DisplayName = "Mickey-Service"
svcinst.Description = "This Service is used by KRAH Mickey for application updates and maintenance"
Installers.Add(svcprocinst)
Installers.Add(svcinst)
End Sub
Private Sub SvcInstaller_AfterInstall(sender As Object, e As InstallEventArgs) Handles Me.AfterInstall
'Set new permissions acc. to Security Descriptor Definition Language (SDDL)
'Source: https://blogs.msmvps.com/erikr/2007/09/26/set-permissions-on-a-specific-service-windows/
'Keeping the source DACL and just adding RP,WP and DT (Start/Stop/PauseContinue) to IU (Interactive User)
Dim DACLString As String = "D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRCRPWPDT;;;IU)(A;;CCLCSWLOCRRC;;;SU)"
process.Start("sc.exe", $"sdset {svcinst.ServiceName} ""{DACLString}""")
End Sub
End Class

System.Security.SecurityException when writing to Event Log C#

My application is in C#.NET and it is deployed on different machines. Users of my application have normal access rights ( no ADMIN rights). On a few system I am getting System.Security.SecurityException. It says "System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security"
I did a few workarounds :-
on one machine I launched my app with admin rights, It worked fine - No issue.
I added user group in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Security.
It worked fine.
I dont want to go to every machine and do above workarounds. I need any generic workaround that can be applied once in all machine.
Any help?
Writing down a few lines of code :-
Config file :-
<add key="E_Source" Value="ABC">
C# code
Public static readonly string E_Source = ConfigManager.GetString("E_Source");
EventLog.writeEntry(E_Source, logtext, logtype);
Thanks in advance
To find the Source you want to write, .NET enumerates through all event logs. If it doesn't exist, .NET will eventually try enumerating through the Security log, for which you don't even have read rights as normal user. Thus, you get a SecurityException.
So you have to make sure that the event log exists (which AFAIK you can't do without triggering the exception). Normally, you would do that as part of your setup/install. Then, when writing, catch the SecurityException and handle it as appropriate (ex. show an error message that you couldn't write to the log).
If you're writing to the EventLog programmatically, you will need to create an event source with elevated permissions, as noted in the documentation on the EventLog class:
https://msdn.microsoft.com/en-us/library/system.diagnostics.eventlog%28v=vs.110%29.aspx

What is the proper way for a Windows service to fail during its startup

I need my service to check for existence and structure of certain files during its startup and exit/fail/stop if some conditions aren't met.
I read this thread: What is the proper way for a Windows service to fail?
but it does not help.
I set the ServiceBase.ExitCode property non-zero and then call ServiceBase.Stop. But I get 5 event log entries. See below:
Starting service. (I log this event via code)
Config.xml file not found. (I log this ERROR event via code)
Service stopped successfully. (SCM logs this message)
Service started successfully. (SCM logs this message)
Service cannot be started. The handle is invalid (SCM logs this message)
As you see everything goes OK except for the last two entries. Why are they there? What can I do to properly shutdown the service during startup? Why doesn't SCM see the service as stopped/failed?
You don't provide enough code to really know, but I suspect you are trying to validate the service and stop it in either the constructor or the OnStart. The way I like to handle services is start my timer in the OnStart. In the first interval of the timer I can validate all the code, if its invalid close the Service. If its valid, reset the interval of the timer to how frequently I want it to run then set a bool that tells it not to check for validity of files again.
What is the return code you are using for your ExitCode? If it matches the corresponding windows ExitCode, then that is what will be recorded by SCM. I'm assuming you are returning a 6 for your ExitCode.
The other thing is if you can run on Default values do that, let Config.xml be missing and just record the problem in the EventLog. "Configuration file Missing"
If you really want it to just abort during OnStart, set your ExitCode and then Throw an Exception (InvalidArgumentException, InvalidOperationException) for example
This article also has some good advice. .NET: Which Exception to Throw When a Required Configuration Setting is Missing?
You are trying to start second instance of service (another service registered for the same .exe)

Error 5 : Access Denied when starting windows service

I'm getting this error when I try to start a windows service I've created in C#:
My Code so far:
private ServiceHost host = null;
public RightAccessHost()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
host = new ServiceHost(typeof(RightAccessWcf));
host.Open();
}
protected override void OnStop()
{
if (host != null)
host.Close();
host = null;
}
Update #1
I solved the issue above by granting permissions to the account NETWORK SERVICE but now I have an another problem:
Update #2
Service cannot be started. System.InvalidOperationException: Service 'RightAccessManagementWcf.RightAccessWcf' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element.
at System.ServiceModel.Description.DispatcherBuilder.EnsureThereAreNonMexEndpoints(ServiceDescription description)
at System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescription description, ServiceHostBase serviceHost)
at System.ServiceModel.ServiceHostBase.InitializeRuntime()
at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at RightAccessHosting.RightAccessHost.OnStart(String[] args) in C:\Users....
I realize this post is old, but there's no marked solution and I just wanted to throw in how I resolved this.
The first Error 5: Access Denied error was resolved by giving permissions to the output directory to the NETWORK SERVICE account.
The second Started and then stopped error seems to be a generic message when something faulted the service. Check the Event Viewer (specifically the 'Windows Logs > Application') for the real error message.
In my case, it was a bad service configuration setting in app.config.
Computer -> Manage -> Service -> [your service] properties.
Then the the tab with the account information. Play with those settings, like run the service with administrator account or so.
That did it for me.
EDIT:
What also can be the problem is that, most services are run as LOCAL SERVICE or LOCAL SYSTEM accounts. Now when you run C:/my-admin-dir/service.exe with those accounts but they are not allowed to execute anything in that directory, you will get error 5. So locate the executable of the service, RMB the directory -> Properties -> Security and make sure that the account the service is run with, is in the list of users that are alloewd to have full control over the directory.
This worked for me.
Right-click on top-level folder containing the service executable. Go to Properties
Go to "Security" Tab
Click "EDIT"
Click "ADD"
Enter the name "SYSTEM", click OK
Highlight SYSTEM user, and click ALLOW check-box next to "Full control"
Click OK twice
Make sure the Path to executable points to an actual executable (Right click service -> Properties -> General tab).
Via powershell (and sc.exe) you can install a service without pointing it to an actual executable... ahem.
I also got the same error , It resolved by
Right click on Service > Properties >Log On > log on as : Local System Account.
I was getting this error because I misread the accepted answer from here: Create Windows service from executable.
sc.exe create <new_service_name> binPath= "<path_to_the_service_executable>"
For <path_to_service_executable>, I was using the path of the executable's folder, e.g. C:\Folder.
It needs to be the path of the executable, e.g. C:\Folder\Executable.exe.
I got the solution:
1. Go to local service window(where all services found)
2. Just right click on your service name:
3. click on "properties"
4. go to "log on" tab
5. select "local system account"
6. click "ok"
now you can try to start the service.
In my case following was not checked.
if you are a having an access denied error code 5. then probably in your code your service is trying to interact with some files in the system like writing to a log file
open the services properties select log on tab and check option to allow service to interact with the desktop,
For me - the folder from which the service was to run, and the files in it, were encrypted using the Windows "Encrypt" option. Removing that and - voila!
This error happens when there is a error in your OnStart method. You cannot open a host directly in OnStart method because it will not actually open when it is called, but instead it will wait for the control. So you have to use a thread. This is my example.
public partial class Service1 : ServiceBase
{
ServiceHost host;
Thread hostThread;
public Service1()
{
InitializeComponent();
hostThread= new Thread(new ThreadStart(StartHosting));
}
protected override void OnStart(string[] args)
{
hostThread.Start();
}
protected void StartHosting()
{
host = new ServiceHost(typeof(WCFAuth.Service.AuthService));
host.Open();
}
protected override void OnStop()
{
if (host != null)
host.Close();
}
}
I had windows service hosted using OWIN and TopShelf.
I was not able to start it. Same error - "Access denied 5"
I ended up giving all the perms to my bin/Debug.
The issue was still not resolved.
So I had a look in the event logs and it turned out that the Microsoft.Owin.Host.HttpListener was not included in the class library containing the OWIN start up class.
So, please make sure you check the event log to identify the root cause before beginning to get into perms, etc.
In my case, I had to add 'Authenticated Users' in the list of 'Group or User Names' in the folder where the executable was installed.
One of the causes for this error is insufficient permissions (Authenticated Users) in your local folder.
To give permission for 'Authenticated Users'
Open the security tab in properties of your folder, Edit and Add 'Authenticated Users' group and Apply changes.
Once this was done I was able to run services even through network service account (before this I was only able to run with Local system account).
Right click on the service in service.msc and select property.
You will see a folder path under Path to executable like C:\Users\Me\Desktop\project\Tor\Tor\tor.exe
Navigate to C:\Users\Me\Desktop\project\Tor and right click on Tor.
Select property, security, edit and then add.
In the text field enter LOCAL SERVICE, click ok and then check the box FULL CONTROL
Click on add again then enter NETWORK SERVICE, click ok, check the box FULL CONTROL
Then click ok (at the bottom)
Your code may be running in the security context of a user that is not allowed to start a service.
Since you are using WCF, I am guessing that you are in the context of NETWORK SERVICE.
see: http://support.microsoft.com/kb/256299
I have monitored sppsvc.exe using process monitor and found out that it was trying to write to the HKEY_LOCAL_MACHINE\SYSTEM\WPA key. After giving permissions to NETWORK SERVICE on this key, I was able to start the service and Windows suddenly recognized that it was activated again.
Use LocalSystem Account instead of LocalService Account in Service Installer.
You can do this either from doing below change in design view of your service installer:
Properties of Service Process Installer -> Set Account to LocalSystem.
or by doing below change in in designer.cs file of your service installer:
this.serviceProcessInstaller1.Account = System.ServiceProcess.ServiceAccount.LocalSystem;
Have a look at Process Utilities > Process monitor from http://www.sysinternals.com.
This is tool that allows you monitor what a process does. If you monitor this service process, you should see an access denied somewhere, and on what resource the access denied is given.
For the error 5, i did the opposite to the solution above.
"The first Error 5: Access Denied error was resolved by giving permissions to the output directory to the NETWORK SERVICE account."
I changed mine to local account, instead of network service account, and because i was logged in as administrator it worked
If you are getting this error on a server machine try give access to the folder you got the real windows service exe. You should go to the security tab and select the Local Service as user and should give full access. You should do the same for the exe too.
I accidentally set my service to run as Local service solution was to switch to Local System
After banging my had against my desk for a few hours trying to figure this out, somehow my "Main" method got emptied of it's code!
ServiceBase[] ServicesToRun;
ServicesToRun = new ServiceBase[]
{
new DMTestService()
};
ServiceBase.Run(ServicesToRun);
Other solutions I found:
Updating the .NET framework to 4.0
Making sure the service name inside the InitializeComponent() matches the installer service name property
private void InitializeComponent()
...
this.ServiceName = "DMTestService";
And a nice server restart doesn't hurt
Szhlopp
In may case system run out of free space on local disk.
I had this issue today on a service that I was developing, and none of the other suggestions on this question worked. In my case, I had a missing .dll dependency in the folder where the service ran from.
When I added the dependencies, the issue went away.
In my case I kept the project on desktop and to access the desktop we need to add permission to the folder so I simply moved my project folder to C:\ directory now its working like a charm.
I don't know if my answer would make sense to many, but I too faced the same issue and the solution was outrageously simple. All I had to do was to open the program which I used to run the code as an administrator. (right-click --> Run as Administrator).
That was all.
check windows event log for detailed error message. I resolved the same after checking event log.
All other answers talk about permissions issues - which make sense, given that's what the error message refers to.
However, in my case, it was caused by a simple exception in my service code (System.IndexOutOfRangeException, but it could be anything).
Hence, when this error occurs, one should look inside their log and look for exceptions.
I had this issue on a service that I was deploying, and none of the other suggestions on this question worked. In my case, it was because my .config (xml) wasn't valid. I made a copy and paste error when copying from qualif to prod.

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