The timer

The Options | Timer dialog contains settings to control when Data Splitter is executed :

screen shot: timer configuration dialog

The interval and start time can both be specified.   In that case the first run will occur at the start time, subsequent runs starting every "interval" seconds thereafter.

The start time must be in the future.   If it is past an error dialog will appear when the run command is issued.

If Data Splitter is still running when the interval ends the next start will occur at the end of the next interval when Data Splitter is idle.   In other words, interval "spacing" is preserved.

Windows Scheduled Tasks

Command line program DS.exe can be used to run Data Splitter as a Windows Scheduled Task.   Scheduled Tasks provide additional features to control when programs run.   Consult Windows documentation and the DS command line program topic for more information.