Oh man, you must be too young to remember when companies had intranet sites that only worked on IE6 long after it was supported. That was pure hell as a young IT support drone. Good god.
The Flash UI of VMware vSphere.
Why was everything Silverlight for a few months?
Also never fails to amaze me that if Adobe hadn’t been so lazy with making Flash performant on Mac, Steve Jobs wouldn’t have delivered the death blow. ActionScript was not a bad language!
My condolences to everyone who has to suffer stereotypical enterprise software.