Some programs will open the file without creating another instance if you
drag and drop the file onto the open program window.
If the applications window is hidden, you can drag the file to the taskbar
button of the running app and hover there for a second or so and the
applications window will display.
"potternharry" <potternharry@xxxxxx> wrote in message
news:97801249-47AD-4543-82F4-C89DBFECB926@xxxxxx
Quote:
> How can I open a file in an already running program by double click in the
> explorer?