I.R.I.S. Readiris 14 for Mac User Guide - Manual (Page 17)

Section 1: Installation and Activation
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 Fill in your data and click Submit.
Note that an internet connection is required to complete the
activation.
C
HECK FOR UPDATES
When you register your copy of Readiris you are entitled to free
software updates.
To check if updates are available:
 On the Help menu, click Search for Updates.
Note: Readiris automatically checks for updates every 30
days.