Restrictions on Excel in-place activated in Browser?
 

Has anyone found a reference point for which functions, macro capabilities
and other behavioral oddities happen when Excel is in-place activated in a
browser (instead of in a "real" separate Excel instance)? I remember having
troubles with this a year or two ago, but can't remember the details, and
the folks on a current project are talking about allowing this... (This is
the case where a user clicks on a link pointing to an XLS document, and it
is opened "in the browser" rather than launching a real separate copy of
Excel.)

Thanks in advance for any pointers or info on this.

Regards,

Joel