Directory watcher event batch script

Hello All,

Is it poossible to achieve directory watcher event through dos script

E.g - I have dir say A if some text file is comes in this directory the an event should get raised

like if a.txt file comes in dir A the test.batch file shoulde get run. And there is no fix time for a.txt it will come any time in dir A.

how can we achieve it through dos script.