Thanks again Jane
This piece of software resides on my old Mac (Sierra) and I just copied the whole bit to my new iMac. Unfortunately I don't remenber when I got it but it works. Actually it a version that I installed long time ago
The problem is elsewhere, but in any event, I'll look closely at the new offer from Adobe (Glad to know that Photoshop will be on my computer!). Maybe Elements will do the job! What get me a bit frustrated, is all the plug-ins that I installed from 2017 to today! But, as they say, upgrading is always aburden for the user.
If you have a subscription then just download the current version using the CC app.
If you do not have a subscription , then you should not have been using CC2017 as without a valid subscription only a hacked version would work, and you are on your own. We are not here to get pirated software working.
Dave