Bruce,

Mine are also 11/5, shdoc401.dll is version 5.00.2919.6304, shdocvw is 5.00.2919.6307.

>The problem began after #4. It's kind of intermittent - last night things ran well for an hour or two, doing various web stuff. Then the problem hit again, and IE hung, and I had to End Task it. Doing an MSDN search, I see there are quite a few problems associated with these DLLs...

This could be just a normal IE crash *g*

>Anyway, I think it's an install sequence problem of some sort. I might want to uninstall IE5 and win98SE, and start fresh. The question is, which order? I guess maybe 98SE first, then IE5.01...

I think that's what I'd do.