Magnetic reconnection operates in two regimes. In the first, nearly 
anti-parallel magnetic fields reconnect, whereas the second mode involves 
significant "guide" magnetic fields, directed along the main current flow 
in the inner dissipation region. Physically, these two regimes can be 
distinguished by analyses on ion and electron orbital behavior within their 
respective demagnetization regions. For either species, reconnection is 
effectively anti-parallel, if the particle Larmor radius, in the guide 
field, within the diffusion region exceeds the dimensions of the latter. In 
case the Larmor radius exceeds the diffusion region dimensions, the 
particle bounce motion in the poloidal field reversal is inhibited and a 
different mechanism has to effect particle demagnetization. In this latter 
case, reconnection is best described as component reconnection. Both cases 
are deemed to be applicable in space plasmas, ranging from anti-parallel 
reconnection in the nightside magnetosphere to reconnection of highly 
sheared magnetic fields in the solar corona. We will use high-resolution 
particle-in-cell simulations to compare properties of the two regimes. In 
particular, we will focus on particle properties, and the demagnetization 
processes acting in either limit.