@echo off
 
if "%OLD_PATH%" == "" (
  set OLD_PATH=%PATH%
)
 
setlocal
 
set FB_KEY=HKLM\SOFTWARE\Firebird Project\Firebird Server\Instances
set FB_VALUE=DefaultInstance
 
for /F "skip=2 tokens=2*" %%A IN ('reg query "%FB_KEY%" /v %FB_VALUE%') do (
  for /F "delims=\ tokens=4" %%Y IN ('echo %%B') do (
    set CURRENT_FB=%%Y
  )
)
 
set VERSION=%1
 
if "%VERSION%" == "" (
  echo Syntax : %0 [1.5 ^| 2.0 ^| 2.1 ^| 2.5 ^| 3.0] [Params for instsvc i^(nstall^)]
  if not %CURRENT_FB% == "" (
    if exist %CURRENT_FB%\bin\instsvc.exe (
      echo.
      echo Tip : These are the available options for instsvc from Firebird %CURRENT_FB%
      %CURRENT_FB%\bin\instsvc.exe
    )
  )
) else (
  if not "%CURRENT_FB%" == "" (
    echo Unregistering Firebird %CURRENT_FB%
 
    pushd %CURRENT_FB%\bin
    instclient r g
    instsvc stop
    instsvc r
    instreg r
    popd  
 
    echo.
  )
 
  echo Registering Firebird %VERSION%
 
  pushd %VERSION%\bin  
  instreg i -z
  instsvc i %2 %3 %4 %5 %6 %7 %8 %9
  instsvc start
  instclient i g
  popd
 
  echo.
 
  echo Defining System Path to search in Firebird %VERSION% tools and some useful environment variables
 
  endlocal 
  set PATH=%OLD_PATH%;"%CD%\%VERSION%\bin"
  set ISC_USER=SYSDBA
  set ISC_PASSWORD=masterkey
 
  echo All Right !
)