SCSI Read/Write Sector wise in Thumb Drive (USB Mass Storage Device)

Hi,

How to write/read each sector using SCSI commands without any file system in Thumb Drive / Pen Drive which is enumerating as USB Mass Storage Device, in Windows operating systems?

Is there any special driver for windows OS, which can be directly used by a Win32 Application?

Is it possible to do without changing the Firmware in the Mass Storage Device of Thumb Drive / Pen Drive?

Thanks!

John Peter