Sometimes back my brother-in-law, who is having a Computer Center at Mettur, asked me how to block the USB ports which the students are misusing. I suggested him to disable the USB ports in the device manager but he said that since the mouse & keyboards he uses are USB based, the students just plug out the mouse or keyboard and use their USB devices to copy / transfer the confidential materials as well as unmentionable materials.
I kept searching a solution for him for long and I gave up. Today I came across this tool which was exactly the solution my brother-in-law was asking. This could be the requirement for many of the parents / offices too so that their PCs/Laptops can be safeguarded from being misused. This allows the mouse and keyboard to be functional while the USB based storage devices are blocked. So here it goes for all those who finds this useful.