This isn't necessarily the case anymore. They realized they could charge more money after all this parts pairing and proprietary stuff started.
Dealerships can make more money from repairs than selling. Especially if sales margin is lower due to online competitors selling cars cheaper.
This bill attacks one of the things preventing cheaper repairs and shops from helping .
Don't do this.
Downloading an exe from some random place is a huge red flag.
Windows lets you pause updates.
Might download some of these on an analysis workstation and run them through virus total and sandboxes. This could be fun.