And the Code in Digital VMS Operating system on the back to do just that.
$COPY SYSLICENSE.EXE SYSLICENESE.EXE_ORIGINAL
are some lines.
Patching in the Operating System. What a life!
These were the days when licensing policys were introduced in the IT market. Digital Equipment had just implemented this policy. The first License Management Facility had seen the light of the world.
I do not recall the year, it can be somewhere around 1985 or so.
The T-shirt is still one of my keepers. It was handed to me, secretly, folded at a DECUS conference a long long time ago in a galaxy not so far away.