Author: Tomas Rutkauskas 

How to start or stop Interbase service

Answer:

Do you need to shutdown the Interbase db service e.g. for an installation program 
and afterwards restart it?

You could do this with a lot of Delphi code involving unit WinSvc and function 
calls to

OpenSCManager()
EnumServicesStatus()
OpenService()
StartService() or ControlService().

But luckily there is a much easier solution that uses the NET.EXE program which has 
been part of Windows since Windows for Workgroups (Wfw 3.11). Just create the two 
batch files

IBSTOP.BAT
IBSTART.BAT

and call them from your code. You may want to call them and wait for their 
termination.

IBSTOP.BAT
=============
@echo off
net stop "InterBase Guardian" >NULL
net stop "InterBase Server" >NULL

IBSTART.BAT
=============
@echo off
net start "Interbase Guardian" >NULL