services on 64 bit windows not working

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I have some program written and compiled in C++ embarcadero builder 2010.
It is then wrapped in visual studio (c#) service setup (or whatever is the proper name of it)
It works fine on 32 bit systems but even after changing TargetPlatform property to x64 it only looks like it works but it doesn't really invoke code in it (had to put beep in code to make sure as I could not make builder to properly attach to process for debug)

So two questions: why it doesn't work and why I can't debug it?
I understand that second part of question is strongly related to it not working :)

Posted 22-Aug-11 3:48am

mateusz.matyaszek

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Chuck O'Toole · Answer 1 · 2011-08-22T04:00:00

Solution 1

Are you sure you're C++ code is 64-bit? The embarcadero web site says their C++ compiler generates 32-bit executables for 32 and 64 bit systems.

Basically, if the C# code wraps the C++ code, then the C# code "bitness" will define what the image. If you have your C# properties set to "Any Cpu" or "X64", you will get a 64 bit executable which will require the C++ code to be 64 bit also.

Try setting the properties to X32 to force 32 bit compatibility mode for the image.

Posted 22-Aug-11 4:00am

Chuck O'Toole

Comments

mateusz.matyaszek 22-Aug-11 10:09am

No the C++ code is 32 bit. Problem is that no matter what I set in c#, service won't run on 64 bit system (it only pretends to run).

cariolihome 22-Aug-11 19:08pm

What messages was appeared in eventlog ?
What contains service registry key ?

mateusz.matyaszek 23-Aug-11 3:09am

Its unimportant. There are no messages in eventlog not even custom ones that start of service should produce. No registry keys are used for this particular service.

cariolihome 23-Aug-11 7:48am

Its important, because each service always has own reistry key in HKLM\System\CurrentControlSet\Services or its not service

mateusz.matyaszek 23-Aug-11 8:50am

Ok you are right it does have entry in registry (as a service but underlying application doesn't). I said is unimportant cuz I don't understand how this affect diagnosing of my problem. Can you explain? I would say if registry entry for service would be missing it would die at start instead of pretending to be ok.

cariolihome 23-Aug-11 8:54am

You ask to help, but information about Your problem are scarce
I want to sea more information

mateusz.matyaszek 23-Aug-11 9:38am

Well I don't know what other information is really needed. I have 6 other services with exactly same problem. They all work fine when installed on 32 bit system but don't work on 64 bit.

cariolihome 23-Aug-11 10:14am

How C# wrapper interacts with C++ program ?
Please, specify service registry key contents

mateusz.matyaszek 24-Aug-11 4:59am

First question - I don't know. I presume it installs service that points to image of whatever file you specify.

As to registry it shows
DisplayName MYPROGRAMNAME
ErrorControl 1
ImagePath MYPROGRAMPATH(folder and file created by service installation)
ObjectName LocalSystem
Start 2
Type 16
WOW64 1

cariolihome 24-Aug-11 8:15am

The registry key is ok.
Can you change c++ service code for debugging porposes ?

If no, You can use ProcMon.exe (Mark Rusinovich utility) for monitoring service activity

mateusz.matyaszek 24-Aug-11 10:48am

I already did change c++ code to debug. I also made sure that c# service setup is pointing to debug version of exe file and both recompiled it and reinstalled. Everything looks like the c++ code is never called. There are no entries for start and stop of service in event log. Beeps inserted in the code don't work either.

cariolihome 24-Aug-11 18:30pm

Try to call ReportEvent or WriteFile after main(){

mateusz.matyaszek 24-Aug-11 10:57am

I will try to install c++ program as service by hand and see if that works. At least I will narrow where the problem is.

cariolihome 24-Aug-11 18:32pm

Service registry key looks correct. May be problem with ImagePath ? Does it contain any system folders ?

mateusz.matyaszek 25-Aug-11 6:33am

Ok. I did install service by hand using sc install and it won't start. So the problem is with builder 2010 Service Application not working on 64 bit.