If you are using a computer with Dolby Atmos support then you may have a DAX API process that came with the DAX API software package. DAX3API.exe is the executable file that belongs to this process.
The os is Win2K server, when I use the Acrobat Reader 4.0 to open a PDF File, there will be many cmd.exe and tftp.exe start up and then the CPU and Ram resources are used up! Who can tell me why?