create service on windows - c++

Question

I am having trouble starting my service on my pc. My code is based on this article http://www.gamedev.net/reference/articles/article1899.asp
When i call installService from my int main(int argc, char *argv[]), it is registered successfully (i can see it in msconfig and services.msc). However it has not started. I manually start the service via services.msv and i get the error "Error 2: system cannot find the file specified". Why is this? i registered the services no more then a min ago, my external HD is still on (where this is currently stored. i'll move a nondev version to c:/ when its ready) What am i doing wrong and is there another tutorial i can look at (i only found the one linked via google)
#define srvName "MyTestService_01312009"
void installService(char*path)
{
SC_HANDLE handle = ::OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS );
SC_HANDLE service = ::CreateService(
handle,
srvName,
"MyTestService_01312009b",
GENERIC_READ | GENERIC_EXECUTE,
SERVICE_WIN32_OWN_PROCESS,
SERVICE_AUTO_START,
SERVICE_ERROR_IGNORE,
path,
NULL,
NULL,
NULL,
NULL,
NULL
);
}
void uninstallService()
{
SC_HANDLE handle = ::OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS );//?
SC_HANDLE service = ::OpenService( handle, srvName, DELETE );
if( service != NULL )
{
// remove the service!
::DeleteService( service );
}
}
SERVICE_STATUS_HANDLE hStatus;
SERVICE_STATUS status;
/*
if( ::StartServiceCtrlDispatcher( dispatchTable ) == 0 )
{
// if this fails, it's probably because someone started us from
// the command line. Print a message telling them the "usage"
}
*/
void WINAPI ServiceCtrlHandler( DWORD control )
{
switch( control )
{
case SERVICE_CONTROL_SHUTDOWN:
case SERVICE_CONTROL_STOP:
// do shutdown stuff here
status.dwCurrentState = SERVICE_STOPPED;
status.dwWin32ExitCode = 0;
status.dwCheckPoint = 0;
status.dwWaitHint = 0;
break;
case SERVICE_CONTROL_INTERROGATE:
// just set the current state to whatever it is...
break;
}
::SetServiceStatus( hStatus, &status );
}
void WINAPI ServiceDispatch( DWORD numArgs, char **args )
{
// we have to initialize the service-specific stuff
memset( &status, 0, sizeof(SERVICE_STATUS) );
status.dwServiceType = SERVICE_WIN32;
status.dwCurrentState = SERVICE_START_PENDING;
status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
hStatus = ::RegisterServiceCtrlHandler( srvName, &ServiceCtrlHandler );
// more initialization stuff here
FILE *f = fopen("c:/testSrv.bin", "wb");
::SetServiceStatus( hStatus, &status );
}
SERVICE_TABLE_ENTRY dispatchTable[] =
{
{ srvName, &ServiceDispatch },
{ NULL, NULL }
};

Answer 1

Maybe you can use Process Monitor to find out what's wrong.
Start it, and look for NAME NOT FOUND results that occur in connection with the service start.