The demo had Securom too, I assume because it was more work to remove its greasy tendrils from the game code than just releasing it as is.
I only know this because before installing, I updated my video drivers, and being ATI, I wanted to kill the atiexx or whatever processes. I use Process Explorer on my system. Once that was done, I fired up the demo installer and it wouldn't work because it had "detected a process explorer running" in the background. PE wasn't running at the time, and nothing I could do short of rebooting would convince the demo installer that it wasn't.
A message of hope to those who choose to hear it,
and a warning to those who do not.