This is application is meant for creating or editing INI files (which all programmers use for saving their program's data) You can add items (sections, keys, values), edit items, delete items, search for items or even drag items Adding items is very simple, if your current selected item is Section, then if you click ADD, you'll add section with 1 key and it's value, If you click ADD while your current selection is any key, then you'll add a key with it's value in the same section where your selected key is. Editing item's txt can be done with ENTER or F2 key (you can cancel with ESC while you're in "edit" mode) Deleting items can be done with key DEL You probably thinking "why did he used new child to set key's value it's annoying to expand every key to check/edit it's value", well if you turn TURBO mode on, then if you click ENTER while key item is selected, you go straight to edit it's value. And btw, I used new child to set as key's value so it could be easier to browse between keys and once you select Key or Value, bottom input will display the value, so you don't have to expand KEY if you wanna check it's value. You can create AU3 code by clicking bottom button "Generate AU3 Code" which will generate writing of your INI file, or you can go Right Click on any item and select whether Write or Read code, and by that, application will generate AU3 code for writing or reading that key or value which is selected. hotkeys: CTRL+N = New CTRL+O = Open CTRL+S = Save CTRL+SHIFT+S = Save As CTRL+F = Find ALT+A = Add item Application Key (Next to Windows key) = call "right click menu" on treeview I hope you'll like it and use it Please report any bugs if you find. Edit reason: fixed bug according to post #17 (thank you wraithdu) and added resizeable gui support according to wraithdu's suggestion (post #14) Edit 2: Added ability to create descriptions for any of the items in the treeview according to titoproject's suggestion (post #12) Edit 3: Fixed bug with "description of items", and reduced memory usage Sample.txt Ini_Editor.au3