.erlang file in windows

I am reading Joe Armstrong's book on Erlang, "Programming Erlang: software for a concurrent world."

In a couple of places he talks about a .erlang file that lives where the erlang library lives, and it is supposed to let you change your environment.

I have tried it a few time开发者_JS百科s, but nothing really seems to happen.

Is the name of the .erlang file different in windows? Has it changed? Or am I just placing it in the wrong place?

I am putting the file here: C:\Program Files\erl5.7.2\bin

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According to this SO Answer it should be in YourErlangInstallationPath\usr\ or C:\Program Files\erl5.7.2\usr\ for you.