[quote=Frazen]I remember this is the one my friend uses on their internet shop when they are having maintenance. it really helps a lot especially cleaning up(disk defrag,scan disk,backups,etc.) huge number of computers.[/quote] Yes it really is... I even tried automation for speeding up processes. And have tried to develop an automation to process excel files. You may digg into these stuffs and share your codes here or you want automation scripts don't hesitate to ask [quote=Frazen]It so powerful that some viruses (particularly Trojan Horse) takes advantage on it. though it is usually harmless, but still it is annoying as pest.[/quote] That is the downside of developing applications for autoIT... many programmers abused its abilities... that's why most .au3 applications are marked as virus when one scans his drive. I even saw some posts on the forums that can make certain task non terminatable