Confirm you've selected the right version for the appropriate software. Once you've verified the file's details and are satisfied in your choice, click "Start Download" to continue.
You can install 32-bit DLL files on a 64-bit system. In a 64-bit Windows, 32-bit DLLs go in the "SysWOW64" folder, while 64-bit DLLs go in the "System32" folder. Always make sure to put the DLLs in the right folder.