FMWebschool today announced the USB Sentry plug-in for FileMaker 7 and 8. This new plug-in enables you to use a USB stick as a key to unlock your FileMaker solution. USB Sentry works with both Macintosh and Windows. The key is the USB stick that is tied to your FileMaker solution. If they do not have the correct USB stick inserted into their computer, then the FileMaker solution will not run. Yes, they can copy the solution from computer to computer, they can even email your solution to their friends, but when they try to run the solution, it will not work unless the USB key is physically inserted into their computer.