If you could provide more information about this software, such as its intended use, features, or the company that developed it, I can better understand what to look for in a review.

In the world of specialized industrial software, CAD/CAM applications, and high-end engineering tools, hardware-based licensing—often in the form of HASP (Hardware Against Software Piracy) USB dongles—is a standard security measure. However, hardware fail, get lost, or create bottlenecks in virtualized environments. This is where comes into play.

Multikey.sys is a kernel driver. A buggy emulator can cause:

: Software developers use it to test the strength of their own protection mechanisms. Google Groups Installation Requirements