Hi, I know (or i think i know) that window classname should be registered, so the system will recognize the window. So basicaly my question is how to register that classname, or should i looking into different direction to find the right answer? I need to create a window using API, i know i can create it with "AutoIt v3 GUI" CLASS, but when i set other class then this, the window isn't created. The reason i need this is simple - i want to be able set interaction between my applicat