  We present initial results of a spectroscopic study of the Pistol and of the
cocoon stars in the Quintuplet Cluster. From ISOCAM CVF 5--17 micron
spectroscopy of the field of the Pistol Star, we have discovered a nearly
spherical shell of hot dust surrounding this star, a probable LBV. This shell
is most prominent at lambda > 12 micron, and its morphology clearly indicates
that the shell is stellar ejecta. Emission line images show that most of the
ionised material is along the northern border of this shell, and its morphology
is very similar to that of the Pistol HII region (Yusef-Zadeh & Morris, 1987,
AJ, 94, 1178). We thus confirm that the ionisation comes from very hot stars in
the core of the Quintuplet Cluster. An SWS spectrum of the Pistol Nebula
indicates a harder ionising radiation than could be provided by the Pistol
Star, but which is consistent with ionisation from Wolf-Rayet stars in the
Quintuplet Cluster. The CVF 5--17 micron spectra of the cocoon stars in the
Quintuplet do not show any emission feature that could help elucidate their
nature.
