Looking for this and even the spammed up sites that require a extension added or most are just collections of old bad links. Which lead to Canon which leads to that page is not found.

eos20d203.exe

I have one old camera that's version 1. something and it works fine for Canon Utilitiy, 2.0.2 doesn't connect and askes for strange drivers or additional files. 

Anyone have a copy of 2.0.3 firmware, for the EOS 20-D? Thanks

I'm on the road, remote right now and after an hour of banging my head against dead ends, I thought maybe someone has a copy? Yeah old cameras, for old projects.

Thank You. I'll find out tomorrow if I turn the camera into a brick or make the final firmware update.

I've switched to an older 20-D and it has some Ver. 1. something. Which oddly works with Canon Utilities.

There's another trick. In order to update Utilities to newer OS, you have to first install the original version of the software. I might have a disk (probably do) somewhere, but instead of being able to download, you have to have the original.  There is a way to add a folder and fool the software into updating. But why does any company, remove the old files from their site?

What I'm doing, in case that matters, is trying to download files from the USB port, without removing the card. Otherwise, easy? Take out the CF and put in a new one.

I bought a use WFT-E1 last week. Which looks like hundreds of pages of how to configure. Funny thing, the Windows 10 version of Utility has a pair camera via CAT 5 cable. That would be fine as well. No USB but even better. Internet cables can run much longer distances, and USB is limited.

Oh well, a good project, trying to get an old camera, with an old wireless, to transfer to a newer laptop.

THANK YOU

Apparently 2.0.2 had some bug that created problems and they replaced it very soon. Sure, the used camera I have, has 2.0.2 on it.