echo off
cls
type a1.scr                                                 
pause      
cls                  
type a2.scr                                       
 
if exist a:\project1.dat del a:\project1.dat
if exist a:\project1.aud del a:\project1.aud
if exist a:\project1.acv del a:\project1.acv

if exist project1.dat copy/v project1.dat a: > nul
if exist project1.aud copy/v project1.aud a: > nul
if exist project1.acv copy/v project1.acv a: > nul

cls
type a3.scr                                    
pause
cls
type project1.scr