In Windows
Jeffrey Greenberg claims that the first drag & drop implementation for Windows was his shareware program called Aporia in 1988 under Windows 2.0, and later commercialized as WinTools. In Aporia/WinTools all icons had functions that could be obtained by double clicking the left mouse button, by clicking on the right mouse button, or by dragging onto one of several functional icons, such as printing, copying, viewing, and other actions. If an icon was double-clicked on and ran a program, the icon changed to indicate that a program was running, and if it was then dragged to the trash, the program was exited. (A defect in the implementation led to a workaround being built into the Windows operating system Aporia Bits)
Subsequently numerous other competitors provided drag & drop desktop replacements to the standard Windows interface including the Norton Desktop, Xerox, NewWave, and Central Point. In Windows 95, Microsoft prevented developers from taking over the desktop, and released a drag & drop model of their own.
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