My program has the following code

datexo=LEFT(datx,2)+"/"+monato+"/20"+SUBSTR(datx,8,2)+" "+SUBSTR(datx,11,6)+":00"

which results in a data like 28/10/2015 10:30:00 still in character format

its then appended into a date time field

This works fine as long as I run it from inside VFP on all machines

But if I run it as a scheduled service or from Explorer on 1 machine the date time field is blank although the character format is the same 28/10/2015 10:30:00

What is the problem?