To perform a one-time synchronization during a session, start the SyncTool executable at any time with the -SyncNow argument.

FlexSyncTool.exe -SyncNow [-SyncArchives] [-SyncFlexConfig] [-SyncFlexRepository] [-ShowDialog]

If SyncTool is running in resident mode when you launch FlexSyncTool.exe with the -SyncNow argument, the resident instance performs the actions as provided by the command-line arguments, and the -ShowDialog argument is ignored.