Windows service on docker does not start - windows

Question

I've created a C# WCF Windows service app in VS 2017 and added Docker Support.
The following Dockerfile was created:
FROM microsoft/dotnet-framework:4.7.1-windowsservercore-1709
ARG source
WORKDIR /app
COPY ${source:-obj/Docker/publish} .
ENTRYPOINT ["C:\\WcfService.exe"]
When I build it using docker-compose in VS I get an error:
Cannot start service from the command line or a debugger. A Windows
Service must first be installed (using installutil.exe) and then
started with the ServerExplorer, Windows Services Administrative tool
or the NET START command. The program '[2172] WcfService.exe' has
exited with code 0 (0x0).
I've opened PowerShell and typed docker ps - the container is running.
So I used New-Service command and to create "TestService".
When I use Get-Service to see all services, I can see it in the list in 'Stopped' mode.
When I use Start-Service TestService I get the following error:
Start-Service : Failed to start service 'TestService (TestService)'.
At line:1 char:1
+ Start-Service TestService
+ ~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.ServiceProcess.ServiceController:ServiceController)
[Start-Service], ServiceCommandException
+ FullyQualifiedErrorId : StartServiceFailed,Microsoft.PowerShell.Commands.StartServiceCommand
Tried to find info but nothing works. Any ideas?

Answer 1

Ok, so I took Jeroen's advice and dug deeper to see the event viewer. I used some filters on the 'Get-EventLog' command to get the relevant error line and stored it in a variable
$A = Get-EventLog -LogName System -Newest 10 -Source "Service Control Manager" | Select *
Then, I formatted it nice using something like:
$A | Format-List -Property *
and got the exception.
Apparently it has something to do with a C++ dll my app is using. It could be missing or the environment has trouble running it, but that's another issue which I believe I can solve.
Hope that helps others running into similar issues. Thanks.