Acutally, I tried both of the options. The activewords.exe should be AWMonitor.exe. The problem still happens. It does not happen immediately. Note, there are 2 instances running for AWMonitor.exe. When the problem happens, one of the AWMonitor.exe shows 2-3% CPU usage and another core was completely taken by CHS.
It seems that I can only use one of the program. I really want to use both. So if there is any debugging I can do, please let me know.