ActivClient 7.4.1.5 or higher , you must typically acquire it through your organization's IT department or an authorized government portal, as it is enterprise-grade middleware not provided as a public "free download" by the manufacturer. VA.gov Home | Veterans Affairs Official Download Channels Military & Government Personnel : Military members should use the MilitaryCAC ActivClient support page
(during installation or first run)
ActivID ActivClient 8.0.0 Release Notes - HID Global Documentation