I sell custom built computers in a niche market. I include specific software pre-loaded on the systems for my customers. If the customer ends up needing to reinstall the OS then the pre-loaded software is all gone. I have had requests to include recovery media that includes this stuff.
I am aware of the technique behind building a custom windows installation disc and we already do this to image the computers when we finish building them. However, would it be legal to burn a copy of this disc and include it with the system?