Confused about which copy protection is being used?

[Sara2]

Cossacks - European Wars is the game and GCW states that the protection is:

VOB & SafeDisc v2 [AoW AddOn] (from http://t3.gcwasia.com/games/pc_cossacks.shtml)

But then *** says it's something different again (from http://*************.com/gp/gamefixe...ropeanwars.htm).

So my questions are:

How do I know which it is for sure?
What is the best program to use for identifying copy protections - is it Protection-ID or is there something better?
Do I have to install the game before using Protection-ID?

Thank you kindly