[TippeX]

ar.exe in the \data directory on cd1 i believe (used by chaser.exe when executed (after you install the game successfully), sets up triggers, launches ar.exe, checks triggers and error codes, if good, runs fine, if bad, screws u right up)

ar.exe is securom+triggers i dont think its launched by the installer, i may be wrong though

setup.exe launches math64.dll (or math32.dll dependant on your system) which is the evil armadilloed one (this is the one that causes the 'cd verification error' the big old msgbox kinda thing that happens just before the files are going to install (math??.dll is extracted from the .cab files i think)