Hello! Hi Swapnil I have been using amibroker for a few years off and on. I had established batch files for yahoo data download a few years ago. I have recently wanted to use this again but it is not working, there may have been updates with Amibroker and/or Yahoo? Also, i am getting duplicate bars when i download Yahoo data. Can you assist with these minor problems? If this job works out ok i may have other projects where your assistance is needed. Regards Mark Wiltshire