The API-USBP(WDM) package, which was previously available separately for USB products, has been integrated into API-TOOL(WDM).
When using USB products, we recommend using the latest API-TOOL(WDM).
Latest API-TOOL(WDM) : https://www.contec.com/download/list/driver-software/apipac/
Even if your Windows OS or development tool version is not compatible with the latest API-TOOL, you can download API-USBP(WDM) or the old API-TOOL(WDM) from our website.
We recommend using the latest API-TOOL(WDM), but please use it as necessary.
API-USBP(WDM) : https://www.contec.com/download/list/driver-software/old/#usb