Exotic and rare processes at HERA

Abstract
The current status of a number of searches for physics beyond the standard model is reviewed, with particular emphasis on certain supersymmetry (SUSY) channels for which experiments at HERA can set better limits than those at other colliders. Leptoquark searches, similar in many respects to Rp-violating SUSY searches at HERA, are briefly mentioned. Finally, the observation of events containing high PT leptons in addition to large missing PT and the related topic of W production at HERA are discussed.