Hi:

Thoroughly confused by your response.

> > In IB source I can only find
> >
> > GUARDIAN_MUTEX = InterBaseGuardianMutex.
> >
> > Can't find mutex for IB Server.
>
> Because you don't know where to look for it.

But I said I had already found that as stated above

GUARDIAN_MUTEX

I was asking about the IBServer mutex where guardian is not used???

> :-)
>
> iscguard.c:
> ControlService(hService, SERVICE_CREATE_GUARDIAN_MUTEX, &ServiceStatus);
> Hey, engine, here's the mutex you want!
>
> cntl.c
> case SERVICE_CREATE_GUARDIAN_MUTEX:
> hMutex = OpenMutex (SYNCHRONIZE, FALSE, GUARDIAN_MUTEX);
> Ah, the guardian has the mutex ready to be used!
>

Thanks.

Best regards