Dear folks I wrote a dos batch file, the first line call a c++ exe file (which generates a log file) and the next line will check if the log file did not created then echo a message on the screen e.g: __________________ start a.exe if not exist a.log echo a.log did not created ___________________ it seems that before the a.exe completed the second line is already printed, how can i make sure that the second line will not started until the first complted as well ?

im still a noob but try.... EDIT: i checked and the code i posted here doesnt work.

oops sorry. i just got a chance to test out that code i just gave you, it wont work, i will continue to try for you.... Sry. EDIT: Sry about multiple posts, just getting used to this forums workings.

OK, i have tested it and this code seems to work, lemme know if you have any problems. === @echo off :begin IF EXIST a.exe (start a.exe) ELSE goto no :no echo File does not exist echo. echo. pause ===

Get rid of START ===================================== If at first you don't succeed, you're about average. M2

You didn't specify which version of Windows you are using. It makes a difference. Try the following: start /wait a.exe if not exist a.log echo a.log was not created

Thanks for your all suggestions , it works properly