Batch run is nothing but running all the scripts at 1 time.
usually we create a file called GLOBAL and store all the 
scripts.all the GUI's(in case of wr) will be stored here.
we have to call all the scripts in that gui file and run it.
very imp : all the scripts should be executed first aand 
then put into batch.
next very imp : we have to change the settings as RUN IN 
BATCH MODE

Batch run is completely different in QTP.

In QTP, here v do not require to call the tests by 
scripting.
We can simply run them by selecting the required tests from 
Test batch runner option and we can stop required tests 
during test run and the results will be stored in their 
corresponding result folders

The sequential execution of more than one test to validate 
functionality is called batch testing. To increase 
intention of bugs finding during test execution, batch 
testing is suitable criteria. The test batch is also known 
as test suit or test set. Every test batch consists of a 
set of multiple dependent tests. In every test batch end 
stage of one test is base state of next test.

saved in qtp test in applications 
in system qtp installed to click startbutton select 
programs and go to qtp and select tools and open batch run
saved files in qtp this is open(executing) automatically 
executing