Kim
The RegForm utility is used to create an MSI package (or jscript) that
registers the form on a specific users machine. To to use the utility to
create a form that can then be deployed to a SharePoint library is not
possible.
If you want to take a form template from a form library and then package it
up you will need to save the actual template locally then use the RegForm
utility to package it up.
You should note however when the form is packaged this will change where
InfoPath references the template from
e.g. if you have a form template in a form library
http://mySite/FormLibrary/Template.xsn
then package it up in an MSI and install it on the users machine at
c:\myTemplates\Template.xsn
any forms filled out using the locally deployed version of the form will
look for the template at c:\myTemplates\Template.xsn
Hope this helps
Cheers
Ben