Author's Name: Dr John Murray Institution: National University of Ireland Maynooth, Co Kildare Ireland Abstract of: Projective Modules and Involutions Let G be a finite group and let k be an algebraically closed field of characteristic 2. Set Omega={g in G | g^2=1}. Then Omega is a G-set under conjugation. We show that each projective component of the associated permutation module kOmega is irreducible, self-dual and occurs with multiplicity 1. In particular, this implies that there is a a bijection between the projective components of kOmega and the real 2-blocks of G that have defect zero. Status: preprint, March 11 2004.