The ActivIdentity ActivClient (Gemalto TOP DL GX4 V2 144K FIPS 2) driver helps Windows communicate with the associated smart card for certificate-based authentication and other supported security tasks. Installing a compatible package allows the card to work with ActivClient middleware and applications configured to use its credentials.

Key Features

• Smart card communication: Provides the device support needed for compatible software to interact with the Gemalto TOP DL GX4 V2 144K FIPS 2 card through a supported smart card reader.
• Certificate-based workflows: Helps enable tasks such as secure sign-in, digital signing, and access to protected resources when supported by your certificates, applications, and organization’s policies.
• ActivClient integration: Works as part of a properly configured smart card environment. ActivClient middleware and a separate reader driver may also be required.
• Windows compatibility: Intended for use with supported configurations of Windows 11, 10, 8, and 7. Check the manufacturer’s package documentation for your specific Windows version and system architecture before installing.

How to Install

1. Check your system and prerequisites. Confirm your Windows version and whether it requires a 32-bit or 64-bit package. Make sure your smart card reader is connected and recognized. On a managed computer, consult your IT administrator before changing security software.

1. Download the matching package. Choose the manufacturer’s driver for ActivIdentity ActivClient (Gemalto TOP DL GX4 V2 144K FIPS 2). Review its compatibility notes and any requirements for ActivClient middleware.

1. Install the driver. If the package includes a setup program, run it and follow the prompts, granting administrator permission if requested. For a driver-only package, extract the files, open Device Manager, locate the relevant device, and select Update driver, then Browse my computer for drivers.

1. Complete setup and reconnect. Restart Windows if instructed. Connect the reader and insert the card according to the installation guidance. If Windows does not detect the card, verify that the reader’s own driver is installed correctly.

1. Verify operation. Open ActivClient or your organization’s approved smart card utility to check that the card and its certificates are available. Test the intended application using your authorized PIN, and avoid repeated guesses, which may lock the card.

Common Issues and Fixes

• Installer fails or rolls back: Remove older ActivClient/ActivID middleware first, reboot, then run the signed installer as administrator with the smart-card reader connected. Check Windows Installer logs if it still fails.
• Card/device not detected: Confirm the reader appears in Device Manager and the Windows Smart Card service is running. Reinsert the Gemalto TOP DL GX4 card chip-first, try another USB port, and install the reader driver if unknown.
• Version conflicts: Don’t mix 32-bit and 64-bit ActivClient packages or multiple smart-card middleware stacks. Uninstall conflicting versions, reboot, and install the package matching Windows and the deployed ActivClient version.