When this command line switch is applied to the executable, a log file is generated during synchronization. This log file contains all of the text that is displayed on the screen while synchronization is progressing. This log file can be used for troubleshooting. For example, if synchronization fails, the file that failed is listed in this log file.
This log file is stored in the ..\Local Settings\Application Data\Hyland Software, Inc\Hyland.Common.Core\Logs folder for the Windows user profile that initiated synchronization.