Protecting Intellectual Property in Distributed Spreadsheets
 

I have developed an Execl spreadsheet that I use to model and balance a
large and complex system of factors involved with fluid dynamics. It is
very application specific to my industry. I would like to license my
spreadsheet for use by companies in the industry that need to do this same
computation. What is the best way to protect my intellectual property (the
spreadsheet formulas) from being copied by companies I distribute the
spreadsheet to. Is the Excel cell protection function adequate or is that
form of password protection easily thwarted. What do Excel application
developers do to distribute and protect their intellectual property? Thank
you.