Just reporting back since you all were so kind to help.
Happy to report that everything is working fine now. I had “sprinkled” dll’s every place thinking CB would find the one it needed and the rest would lie dormant. I did a search on the Miroslav dll’s and deleted all of them except those dated when it last worked in CB7, which, as you suggested, was in the x86 32bit directory. And voila ! Its all working again with no re-install. Still don’t know what caused Miroslav to stop being seen in CB in the first place but at least I know how to handle it again if it recurs.
Thanks again to both of you ! Hope some day I’ll know enough to help somebody else…
Bob