How to hide window from “Applications” tab in task manager?

Question

I have question regarding the CreateWindowEx function. I have 2 windows, a main one and a popup one. I want a popup window to hide everywhere. It is currently not displayed

Answer 1

Make it a child of your main window. Do this by changing the fourth last parameter to the HWND of your main window. This SHOULD make windows treat your popup window as part of the same application as your main window.