OE6 crashed while compacting my folders.
After restarting, I found that:
a) 942 .dbx files were truncated to the empty size (59 or 137 KB)
b) 176 .dbx files remained the same size, but were trashed to all-00 hex bytes
c) 385 .dbx files survived OK

OE6 treats both (a) and (b) folders as having 0 messages.

I have since found KB918069/918766. Comparing my DLL versions, I see that I
did _not_ have this update, on either of my 2 PCs. Hence, it must be
something that Windows Update doesn't automatically install. (I've since
installed it, but that's too late to help.)

So OE6 lost 75% of my e-mail folders, dating back 12 years.
How can I restore these .dbx files?
--
Eric