This number differs every second
Its sort of a timestamp that I like to use to insert in 3 different tables, as a pointer to gather data from an entire DB.
This number is also stored as a timestamp in the registry of the PC.

ie.
get all from hardware where time = $x
get all from software where time = $x
get all from userinfo where time = $x

At that time of reporting the error, the timestamp was: 20040421130155, and is written to the registry without problems