tsnp2std.exe is a Webcam Utility belonging to Pavilion WebCam Software from HP. This is a hardware related file used with cameras or webcams. Sonix is also a maker of this software program. This file will be found in your system startup list.
This software is considered safe, and is not virus or spyware related software.
Non-system processes like tsnp2std.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues