Reading the forums I see MEAISO.dll is the culprit, but what the installer put in seems to be correct:
Mahcine has been rebooted since the installation. This is the only drive where the files exist. Help please!Directory of C:\Program Files (x86)\Mail Enable\Bin
04/24/2020 09:26 AM 756,736 MEAISO.dll
1 File(s) 756,736 bytes
Directory of C:\Program Files (x86)\Mail Enable\Bin64
04/24/2020 09:37 AM 1,067,008 MEAISO.dll
1 File(s) 1,067,008 bytes
Total Files Listed:
2 File(s) 1,823,744 bytes
0 Dir(s) 91,185,856,512 bytes free
Thanks