create custom CDF files for Affymetrix chips

Hello,

Is there any function / package with which you can create your own CDF
files, i.e. you create your own probe sets and based on that a new CDF
file is created?

This doesn't seem possible with makecdfenv (which needs a CDF as input)


The package makecdfenv does this:

Description: This package has two functions. One reads a Affymetrix chip
description file (CDF) and creates a hash table environment containing
the location/probe set membership mapping. The other creates a package
that automatically loads that environment.

regards, R. Alberts