Re: Incomplete...
>Name a server OS feature/API that was dropped in a later version
.NET Framework - Remember applications written for v1.1 won't work with v2 or v3, which in turn don't work with v4 and naturally Win7 and Win8 don't support all versions.
ASP.NET
COM
...
We shouldn't forget that the original intent of the MS Win8 dev team was to ditch the Win desktop, forcing everyone to rewrite their applications to use TIFKAM... Interestingly, I'm not aware that MS have revised their Windows style guide to enable developers to develop Win8 compatible applications in a way that is forward looking...