Make a table with columns for the PC name and for the counters in the database.
When the program opens (or closes?), look the pc name up in the database. If the name does not exist, add a new row with the pc name and appropiate values for the counters.
If the PC name is found in the table, use an UPDATE statement to edit the counter columns.
Sunaj
'The gap between theory and practice is not as wide in theory as it is in practice'