I found a book while at home called Router Handbook and thought it might come in handy when routering paneling and possibly window frames.
Router Handbook by Patrick Spielman. Published 1983 by Sterling Publishing.Co.,Inc. New York.
A router can be used for many different things, from door and wall paneling, to using it to write on signs.
This book will help any routering needed. And give myself, Jenny and Ryhan some idea of how to router the window frame if decided to be routered.