The output means your program uses different means to display chm file - most likely with control and attempting to just open a ".chm" file. What this means to you is that your changes to HKCR won't make any difference.
The output means your program uses different means to display chm file - most likely with control and attempting to just open a ".chm" file. What this means to you is that your changes to HKCR won't make any difference.