since those are redistributable, and might have also been installed/needed by a different Elements-build app you have installed. The GAC has no install count, welcome to .DLL Hell…
All I know is that after I installed .2545 and did manual cleanup for .2525 leftovers, only .2545 files were in these two folders.
When I installed .2549 on top of .2545, these two folders contained both assembly versions, rather than only .2549.
But I understand your dilemma, as far as I’m concerned I don’t have a problem doing some manual cleanup from time to time. After all, we’re talking about Windows.