-=> Quoting Laurent Jumet to All <=-

 LJ> How could I access the feature "Power On since xxxxx", using 4dos
 LJ> or by another way? Purpose is to pass a different command, whether
 LJ> PC is ON since a few minutes, or ON since hours/days. 

I don't think that's stored anyplace 4dos can access easily. 

What you *might* be able to do is have AUTOEXEC.BAT check for a file,
then if it exists, rename it and create a new one. Then you compare the
timestamp on the two files.

--- Blue Wave/DOS v2.30