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### 4.2 PC Users Running MS-DOS

By default, F1 is configured to emulate the <PF1> (<GOLD>) key. But <NumLock> can be used instead if you load a freeware TSR distributed with MS-Kermit, call ‘`gold.com`’. This was once distributed in a file called `gold22.zip` and came with the source code as well as a loadable binary image. (See `edt-pc.el` in the Emacs `lisp/emulation` directory for more information.)