Unfortunately, it often seems that with too little money, a service disappears due to bankruptcy, with too much money a service disappears due to talent acquisition. With software as an application, there was still the possibility to continue using software for years when a company shut down. Windows has terrific backwards compatibility and on UNIX you get far by keeping around old shared libraries and giving a hint…
> Windows has terrific backwards compatibility Windows is most backward compatible software in existence.
You were downvoted for saying this, but anybody who has read the Old New Thing blog (https://blogs.msdn.microsoft.com/oldnewthing/) or Raymond Chen's chapter on Windows backwards compatibility (http://ptgmedia.pearsoncmg.com/images/9780321440303/samplech..., PDF) will be both impressed and horrified at the lengths the Windows team went to in order to avoid breaking programs.