Not sure what you mean by automate. It would be a simple matter to automate
the execution of the mailmerge to a new document and then to save that
document as html.
If you mean individual documents, see the "Individual Merge Letters" item on
fellow MVP Graham Mayor's website at:
http://www.gmayor.com/individual_merge_letters.htm
The code there could be easily modified to save the documents in that
format.

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Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
> Can the finished output doc (letters1.doc) be autocreated as an HTML doc
> (letters1.html)? I am trying to automate the creation of these docs so
> saving as, isn't an option. Could sure use some help on this...