echo off
cls
if exist project2.tmp del project2.tmp
if not exist project2.aud goto no
if not exist project2.acv goto new
type 27a.scr
copy project2.aud+project2.acv project2.tmp /A > nul
del project2.acv > nul
ren project2.tmp project2.acv
type project2.scr
goto done

:new
type 27a.scr
copy project2.aud project2.acv > nul
type project2.scr
goto done

:no 
type 26a.scr
pause
type project2.scr

:done