Make up stuff elsewhere
I didn't make stuff up, I simply read the linked page, from Adobe, which says:
These products were released more than seven years ago, do not run on many modern operating systems, and are no longer supported.
It also says that it runs on:
Microsoft® Windows® 2000/Windows XP
No it doesn't. PC-BSD has had this model for application installs for ages. The installer hard links duplicate libraries and so on together. Hard links are already reference counted, and have been since the early days of UNIX, so you end up with one copy of each library. The logic in the installer is relatively complicated, but the uninstaller just has to delete the tree.
The way that the packages in the repository are built ensures that programs using the same library ship the same binary. If you upgrade just one program, then you'll have two copies of the library, until you upgrade all of them and then the old one's reference count will hit 0 and it will be gone from disk.
E = MC ** 2 +- 3db