lt-fw on win10/64 error

hello:

i am reinstalling firewire drivers on a newly upgraded win10/64 machine. i have downloaded the most current drivers (here: Support / Downloads / Lynx LT-FW / Windows Firewire Driver Build 5.21- ) https://www.lynxstudio.com/downloads/lynx-lt-fw/windows-firewire-driver-build-5-21/) but receive error messages when trying to install.

"This Setup cannot run on the current operating system.
Supported systems are:
...(older Windows versions)"

i have tried to update the drivers directly through computer management, but the c:\lynx directory doesnt have drivers that can be installed.

any help would be greatly appreciated.

thanks,
 js