Adds a process, by name, to the list of filtered processes.
This method adds the process with the specified ProcessName to the list of processes whose requests should be filtered (i.e., that the class should fire events for).
The ProcessName parameter must be a valid process executable name. It may optionally begin with a path, and both the name and the path (if present) may include wildcards (* and ?). A process with a matching executable name does not actually need to exist when this method is called.
The IncludeChildren parameter specifies whether requests made by the specified process's children should also be filtered.
Note: This method can only be called when Active is true.