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The Cygwin libraries are covered by the GPL. The GPL requires the source to any application built with the Cygwin libraries must be distributed with the application. Red Hat sells a Cygwin Buy-Out License for customers who are unable to provide their application in open source code form. This license is sold on a per project basis. The project can be defined as a single product or service. Contact Sales for more information and pricing.
Support services for Cygwin are available through an Unlimited Support Contract. Red Hat delivers world-class support via a team of the largest, most experienced open source Engineers in the world.
What do you get with Cygwin Open Source Developer Support?