RSView32 DatalogOn logs data

I'm using rsview32 v7.60.00. I'm trying to datalog on demand, only when I want to. My biggest problem is when i turn the data logger on using "DataLogOn blabla" command in my startup routine it logs data. I don't want it to log data when I start the software. Is there any way to stop this or delete the most resent log when I start my RSView program?

It seems that the data recorded by DataLogOn has different data in the "marker" collumn that is created by the dataloging. I filtered the data out on the other end in my MS Access program.