Hi, While you can apply reader extensions in Acrobat 9 Pro Extended (and
Acrobat 9 Pro and Acrobat 9 Standard), users with Reader will still not
be able to use the data connections to access the database. The Reader
Extensions that Paul is talking about is a different server component. A
summary is here at the end of this post:
http://cookbooks.adobe.com/post_Using_LiveCycle_Forms_in_Acrobat_and_Reader-16518.html
Good luck,Niall