ActivIdentity ActivClient (ID One Cosmo v7.0 with Oberthur PIV Applet Suite 2.3.2) uses smart-card software to help Windows applications communicate with the card’s identity and security functions. The appropriate driver or middleware package enables compatible software to access card-based credentials for tasks such as authentication and certificate use.

Key Features

• Smart-card communication: Provides the software interface needed to work with the ID One Cosmo v7.0 card and its Oberthur PIV Applet Suite 2.3.2 through a compatible smart-card reader.
• Certificate-based access: Supports the use of credentials stored on the card with compatible applications and services, subject to your organization’s configuration.
• ActivClient integration: Helps connect supported smart-card functions with the ActivClient environment used to manage or access credentials.
• Windows compatibility options: When downloading for Windows 11, 10, 8, or 7, choose a manufacturer-provided package that explicitly supports your Windows release and system architecture. Compatibility can vary between package versions.

How to Install

1. Check your system and card details. Confirm your Windows version and whether it is 32-bit or 64-bit under System settings. Verify that the package lists ActivIdentity ActivClient (ID One Cosmo v7.0 with Oberthur PIV Applet Suite 2.3.2), rather than a similarly named card or applet version.

1. Download the appropriate package. Select the driver or ActivClient middleware supplied by the manufacturer for your setup. Review any included requirements, especially on organization-managed computers where a specific version may be required.

1. Prepare the smart-card reader. Connect a compatible reader and check that Windows recognizes it. The reader may need its own driver; installing card middleware does not necessarily install the reader’s software.

1. Run the installer. Extract the download if necessary, launch the setup program, and approve administrator access when prompted. Follow the installation instructions and restart Windows if requested. Avoid removing existing security software unless your administrator or the package documentation directs you to do so.

1. Confirm operation. Insert the card and open the installed ActivClient utility or your intended application. Check that the card and its certificates are detected. If they are not, verify reader connectivity, package compatibility, and any organization-specific configuration before reinstalling.

Common Issues and Fixes

• Install fails or rolls back: Remove older ActivIdentity/ActivClient builds and conflicting PIV middleware, run the installer as administrator, and reboot before retrying. Keep the ID One Cosmo reader connected during setup.
• Device or card not detected: Start the Windows Smart Card service, reinstall the reader driver, insert the card fully, and confirm the Oberthur PIV applet is selected. Close other smart-card software that may be holding the card.
• Version conflicts: Match ActivClient to the installed Oberthur PIV Applet Suite 2.3.2. Uninstall mismatched ActivClient/ActivIdentity versions, clear stale driver entries, then install the vendor-supported package.