I ran across this little thread, just wanted to point something out:
GTA IV is on the list with SecuROM protection on
http://reclaimyourgame.com/,
like GTA:San Andreas. I only have experience with GTA:SA, which
definitely has SecuROM, but it seems logical that Rockstar would stick
to one protection scheme.
I haven't had much experience with StarForce myself as I've been
carefully avoiding it, but I do know SecuROM. Several of the games I
own have SecuROM, a few with StarForce, none of which I play anymore.
Anycase,
Keep up the good work folks.
TT