Using AutoHotKey, how to change (remap) a keyboard key to run a file?

Question

Say I want to change the key F12 to instead open the file C:\file.txt

How can I do this using AutoHotKey?

Here is what I have that is not working:

F12::Run C:\file.txt

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UPDATE: I did it wrong. I should be using a forward slash, not a back slash. First to answer with this answer an maybe give another tip, wins.

This works:

F12::Run C:/file.txt

Answer 1

This is the correct form:

F12::Run, C:\file.txt