TSCOM3 retrieve error

[polo022]

Hello

Here is an other problem I am encountering.

I would like to use TSCOM3 to run Fex files (batch).

Here is my .bat file :

C:\ibi\srv71\wfs\bin\edastart -f myfile.t3i

Here is myfile.t3i :

%connect
%begin
EX MYFEX
%end
%disconnect
%stop_server


My question is : How could my .bat file knows whether an error occured during "myfex" was running?
Because I do not want to continue ".bat" execution if an error occured.

Thank you.