  We evolve virtual photon parton densities up to the SUSY threshold and higher
using coupled inhomogeneous DGLAP differential equations. Reliable input
parameterizations were available from the c-quark threshold. Limited
  $P^2$ ( target photon virtuality ) dependence is observed. The difference to
the photon structure function is shown to be significant with the introduction
of SUSY dependent splitting functions. A negligible difference is observed by
letting the gluino mass enter after the squark mass. An effort is made to
include the squark threshold effect in such a way that both the renormalization
group equations are satisfied and the perturbative calculation is reproduced.
