A process named DW20.exe is using 100% of my CPU on my web server and I can’t figure out what is causing it?
This is Microsoft’s error reporting tool (Dr. Watson). If you need to fix the problem immediately, feel free to kill the process when it appears. Your web server will start functioning fine after the process is dead.
In the long run, you can turn it off by following the instructions found here and just turning it off instead of on. By default, it is turned on.