This is the more common approach. It involves creating a software driver that intercepts communication between the application and the USB port. The software "tricks" the application into believing a physical dongle is attached by mimicking the dongle’s return signals (response codes).
. This driver tricks Windows into thinking a physical Sentinel key is plugged in, when in reality, it's just reading the dumped data from the hard drive. Reverse Engineering Stack Exchange 3. The Modern Era: Sentinel LDK and HASP Modern dongles, such as the Sentinel HL (Hardware License) , have become significantly harder to clone. Thales CPL Advanced Encryption sentinel dongle clone