NGSCB was among the topics discussed during Microsoft's PDC 2003 with a pre-beta software development kit, known as the Developer Preview, being distributed to attendees. The Developer Preview was the first time that Microsoft made NGSCB code available to the developer community and was offered by the company as an educational opportunity for NGSCB software development. With this release, Microsoft stated that it was primarily focused on supporting business and enterprise applications and scenarios with the first version of the NGSCB scheduled to ship with Windows Vista, adding that it intended to address consumers with a subsequent version of the technology, but did not provide an estimated time of delivery for this version. At the conference, Jim Allchin said that Microsoft was continuing to work with hardware vendors so that they would be able to support the technology, and Bill Gates expected a new generation of central processing units to offer full support. Following PDC 2003, NGSCB was demonstrated again on prototype hardware during the annual RSA Security conference in November.