In the Installation section of the documentation for Windows, the Note for point 3 contains the text:
"If you used the Windows installer to install KeePass, then the folder will be
C:\Program Files (x86)\KeePass Password Safe 2\Plugins (or
C:\Program Files\KeePass Password Safe 2\Plugins on 32-bit systems)."
Paths are swapped.
In the Installation section of the documentation for Windows, the Note for point 3 contains the text: "If you used the Windows installer to install KeePass, then the folder will be C:\Program Files (x86)\KeePass Password Safe 2\Plugins (or C:\Program Files\KeePass Password Safe 2\Plugins on 32-bit systems)." Paths are swapped.