shares an article called "What Really Happened with Vista: An Insider's Retrospective." Ben Fathi, formerly a manager of various teams at Microsoft responsible for storage, file systems, high availability/clustering, file level network protocols, distributed file systems, and related technologies and later security, writes:
Imagine supporting that same OS for a dozen years or more for a population of billions of customers, millions of companies, thousands of partners, hundreds of scenarios, and dozens of form factors -- and you'll begin to have an inkling of the support and compatibility nightmare. In hindsight, Linux has been more successful in this respect. The open source community and approach to software development is undoubtedly part of the solution. The modular and pluggable architecture of Unix/Linux is also a big architectural improvement in this respect. An organization, sooner or later, ships its org chart as its product; the Windows organization was no different. Open source doesn't have that problem...
I personally spent many years explaining to antivirus vendors why we would no longer allow them to "patch" kernel instructions and data structures in memory, why this was a security risk, and why they needed to use approved APIs going forward, that we would no longer support their legacy apps with deep hooks in the Windows kernel -- the same ones that hackers were using to attack consumer systems. Our "friends", the antivirus vendors, turned around and sued us, claiming we were blocking their livelihood and abusing our monopoly power! With friends like that, who needs enemies?
I like how the essay ends. "Was it an incredibly complex product with an amazingly huge ecosystem (the largest in the world at that time)? Yup, that it was. Could we have done better? Yup, you bet... Hindsight is 20/20."