The ITL DA2 is not a widely known or standard device, so there could be confusion or variations based on the manufacturer or product category. However, from the context of your question, it seems like you are referring to a driver for an ITL (possibly a specific brand or model) device called DA2, which could be an audio interface, digital converter, or other type of hardware.
Since the ITL DA2 is not commonly recognized in major hardware databases, the steps provided here will be general guidelines for installing a driver for a device like this on Windows.