DLLs can fail to register on Windows 7 64-bit

I installed on Windows 7 64-bit using: "basic-miktex-2.9.5105-x64.exe".
This operation seems to work just fine.  I then tried to use MiKTeX 2.9 |
Maintenance (Admin) | Update (Admin) from the start menu.  I accepted the
packages automatically selected for update.

This message is in the log file:

mpm --register-components --verbose --admin:
mpm.exe: regsvr failed for some reason.

A similar failure occurs if I install using "basic-miktex-2.9.5105-x64.exe",
then install LyX and accept the LyX installer's suggestion to automatically
update MiKTeX.  However, if I do not attempt to update MiKTeX and decline
the LyX installer's suggestion, then LyX appears to function.  At least, I
can export a PDF using LyX and a previously created and used LyX source
file.

For now, I have a working install and intend to leave it that way for a
while.

Ken J.


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