Starting with PSPad version 5 (builds 275, 277 and 278), the PSPad window disappears from the Alt + Tab switcher as soon as https://www.displayfusion.com/ is installed and their integrated Alt + Tab switcher takes over, i.e. the "Alt+Tab" setting in Displayfusion is set to any of the provided options except "Disabled".
PSPad version 4.6.2 build 2750 does not have this problem. I am using the Pro edition of Displayfusion (version 9.3) but the problem can be replicated with the Displayfusion trial version offered on their website. Tested on Windows 10 Pro 1803 and Windows 7 Pro with all the latest updates. -- <https://forum.pspad.com/read.php?4,70887,70887> PSPad freeware editor https://www.pspad.com
