Hi Rakovsky,
Thanks for answering.
I indeed have asked a very stupid question.
First, Upatch 1.1 R4 installs version 1.0c of the software, so that solution doesn't help.
But......
On the Upatch (official) website there's a help menu to the right.
In there one can choose "Using Mods".
Well, I found this site some 6 years ago and are using Upatch since then.
I've read all the pages, about the features, how to install, etc. etc. I've read the help section, the FAQ's but NOT the Mod's part.
By then, I didn't even know what mods where, I just wanted to play the game full screen on my new W10 laptop.
So, in the Using mods section, there's a link to some mod's that AoE_Scout has made himself.
Among that is a mod that makes it possible to return to the old 1.0 and 1.0a versions.
I haven't tried it yet but I guess that, after all those years, I'm finally able to play the A.R campaigns fully to the end with the help of this mod.
Really, I feel very, very stupid.
I could have known this many years ago.
On the other hand, I'm glad I found it.
Over 20 years after it's first release, I'm still in love with this AoE-RoR masterpiece[This message has been edited by Kastanje57 (edited 10-10-2020 @ 10:14 AM).]