The Sony Ericsson W810 USB WMC OBEX Interface Windows driver is software that allows your Sony Ericsson W810 mobile phone to communicate with your Windows computer via USB. The WMC (Windows Mobile Communications) and OBEX (Object Exchange) protocols are commonly used for transferring files between devices, such as your phone and your computer. The driver essentially enables your phone to be recognized by Windows, allowing you to perform tasks like transferring files, managing contacts, or syncing media.

This driver is typically required when you want to use your Sony Ericsson W810 as a modem or for transferring data over a USB connection.