Micky wrote in
:

Just to clear it's name, offending application is not Message-File
Viewer aka Greek Message Viewer (viewer.dll), it's a different plug-in
(presumably) with similar name (viewer32.dll).

It appears likely that viewer32 was the earlier version of viewer.dll,
when the version was 3.2. Very strange since I don't remember
renaming it, and I normally wouldn't bother to save old versions when
the author has come out with something newer, and when I had no reason
to think I'd ever need the earlier version. And without checking the
flashdrive, I don't ecven know which version was on it`and which was
alr eady on the laptop

There is no version 3.2, the latest one is 3.1. If you are unsure of the
source, d/w it from he
http://www.drivehq.com/web/brana/plugins.htm

Perhaps you renamed it to indicate 32-bit. Note Eudora is 32-bit
application it can not load 64-bit version of viewer, or any other DLL.

But apparently it was two versions of the same dll that caused the
problem, even tholugh one had another file name. I didn't know that
could happen. (My eyes are watering too much for me to know if I've
made typos.)

There you go, that could cause problems. File names are irrelevant, plugin-
ids matter. 2 DLLs with the same Id - avoid.
So if you want to keep the old versions of DLLs inside the Plugins folder,
append to/rename their DLL extensions.

OldPlugin.dll.off - Correct.
OldPlugin123.dll - Avoid.