One more piece to this puzzle: The following error dialog box comes up when I try to run the update:
"Could not load data from manifest file: C:
\Uses\TDesmit\iod_updates\update.xml
Updater will be closed. You can read details in the log file:
C:\Users\TDesmit\iod_updates\log\2015-08-26-07-33-41.log
The text in the initial post is the text of that log file.
Tom