The h264splitter.ax file is a H.264 Splitter (Filter) from Arcsoft. H.264 is a video compression format. Files with an extension of ax are filters used by a codec (coder-decoder). Codecs translate digital data into a format that your computer recognizes.
Seeing an error with this file may mean that you cannot view videos in the H.264/MPEG-4 AVC format. Reinstalling the program using this file may fix the problem, but you should clean your registry before you go to the trouble of a reinstall.
The registry is the heart of your operating system. It is a database that tracks all the files installed on your computer. When your run a program, Windows finds the files it needs by checking with the registry. Mistakes in the registry can disable your programs.
SpyZooka cleans your registry by finding those mistakes and repairing them for you. SpyZooka hunts down and fixes every error in your registry, guaranteed.