discovered in the nebula of a Wolf-Rayet (WR) star for the first time. At the measured H2 luminosity of roughly 4 times L(solar), one implication is that WR stars could contribute a substantial fraction of the total H2 emission in young starburst galaxies. The excitation mechanism could be either shocks from the strong stellar wind, or UV flourescence from the intense stellar radiation field. We propose to obtain spectra of the mid-IR H2 transitions using the SWS grating with the aim of establishing the dominant excitation mechanism, and combined with nebular lines diagnose the temperature and density structure and H2 formation rate along the PDR. With LWS01, we can also cover the important fine structure CII, OI, and NII lines to establish the balance of heating and cooling. SWS06 will further allow us to explore, for the first time, the crystalline silicate content of the dust in a WR nebula, and cover the water, CO2, and CO ice or gas phase features that would occur in the molecular material that partially hides the optical nebula. This would be the first (and probably only) observations of their kind on a Pop. I WR nebula with ISO.