Although Softricity was officially in the business of finding ways to virtualize applications within their own self-contained memory envelopes since 1998, for many of us (guilty as charged) the concept is an entirely new science, with new concepts and technologies. In what for many was the first demonstration they'd seen of these concepts, Microsoft senior technical product manager Chad Jones - who came on board when it acquired Softricity - introduced the concept of application sequencing, which is the process admins will undertake to pre-install applications that users will run within a SoftGrid virtualization envelope.
What am I talking about? SoftGrid is now Microsoft's system for enabling remote users to run applications in Vista without their having to be installed there beforehand. In reality, they're being run on the server, in such a way that they just appear to be run on the client.