There might not be an autotrigger but C_duck_v2_s001 appears to execute the inject.bin after the drivers are loaded. I slept on it and test Windows XP again and this time it worked. Drivers took around 30 seconds to load for the first time and around 15 seconds later (have a delay of 15000) my script ran. Maybe the new firmware is just better than the default when it comes to driver load times and execution of inject.bin?