Hi Colin!
When i try it to installed the node i use the comand npm i -g node-red-contrib-iot2000-gpio:

Inside the folder C:\Users\Manuel\.node-red, i got:

And the startup log in my terminal when i start node-red is:
6 Oct 08:05:45 - [info]
Welcome to Node-RED
===================
6 Oct 08:05:45 - [info] Node-RED version: v0.16.2
6 Oct 08:05:45 - [info] Node.js version: v16.15.0
6 Oct 08:05:45 - [info] Windows_NT 10.0.22000 x64 LE
6 Oct 08:05:47 - [info] Loading palette nodes
6 Oct 08:05:48 - [warn] ------------------------------------------------------
6 Oct 08:05:48 - [warn] [rpi-gpio] Info : Ignoring Raspberry Pi specific node
6 Oct 08:05:48 - [warn] [tail] Not currently supported on Windows.
6 Oct 08:05:48 - [warn] ------------------------------------------------------
6 Oct 08:05:48 - [info] Settings file : \Users\Manuel\.node-red\settings.js
6 Oct 08:05:48 - [info] User directory : \Users\Manuel\.node-red
6 Oct 08:05:48 - [info] Flows file : \Users\Manuel\.node-red\flows_DESKTOP-7PT0EQL.json
6 Oct 08:05:48 - [info] Server now running at http://127.0.0.1:1880/
6 Oct 08:05:48 - [info] Waiting for missing types to be registered:
6 Oct 08:05:48 - [info] - iot2000-gpio-din
Thank you so much for your interest to help me