Run Windows 7 in Oracle VirtualBox on a modern PC, pass the USB port to the VM, then install the driver inside the VM.
often contain the most current signed drivers for Windows 7 (both 32-bit and 64-bit). MITSUBISHI ELECTRIC Global website Third-Party Sources (Zip Links) mitsubishi easysocket usb driver windows 7 zip link
The Easysocket driver is rarely a standalone download on official sites; it is typically bundled with engineering software. Mitsubishi EasySocket USB Driver for Windows 7: Download