Cxbx was a HLE Xbox emulation project started by Caustik around 2002. The name is an abreviation for "Caustiks Xbox".
Its official website can be found on Caustiks Cxbx page
CXBX kingofc's dev version
The website for this fork can be found at  It focused on partial LLE.
The website for this fork is blueshoguns blog