timppu: Do you know if that is the most recent version, or is patchable? I saw there is at least e.g. patch 1.02.006 here:
http://www.patches-scrolls.de/patch/1460 cpc464: This is the same as what is distributed with the enemy nations source code so I would say it is the final patch.
Incidentally the source code is for version 2.01 but I don't know if there are any changes from 1.02
Just to confirm:
I just installed (manually) the game in Windows 7
according to the instructions linked by buckstone, and the version seems to be already 1.02.0006 (there was a version button in the game options screen). So the patch from Patches-Scrolls is not needed, the freeware version is already up to date.
The installer is apparently a 16bit application, hence it needs to be installed manually according to the instructions. I might try to install it also on Windows XP to see if it installs conventionally there, but with the workaround it seems to run fine in Windows 7/64bit (you still need the burned CD in the drive or a mounted ISO image just as the instructions state, but no biggie).
I used Folder2ISO to create the ISO image from the files, and MagicDisc to mount it (I don't use the free Alcohol anymore as nowadays it seems to force-install some adware or something). MagicDisc seems to support lots of image formats as well, is completely free, and they even offer a Win9x version (which I'm using on my Win98SE retro-PC).