The measurement of the polarized gluon distribution
function $\Delta g(x)$ from photon gluon fusion processes in
electron proton deep inelastic scattering producing
two jets has been investigated. The study is based on the MEPJET
simulation program.
The size of the expected spin asymmetry
and corresponding statistical uncertainties
for a possible measurement
with polarized beams of electrons and protons at HERA
have been estimated.
The results show that the asymmetry can reach a few percents.