XnView Software

To update my post -- the problem has disappeared as mysteriously as it appeared. The XnView logo that had been appearing in my video file icons is no longer there. I have no idea why, and I haven't rebooted. But everything seems to be back to normal.

For some reason, the XnView logo started appearing in the lower right corner of the icons for all of my video files (avi, wmv, mp4). I checked my file associations, and it’s not associated with any of those file types. How can I get rid of this logo?