  We report 60 and 90 micron observations of 7 millisecond pulsars with the
ISOPHOT instrument and describe our analysis procedures. No pulsars were
detected, and typical (3\sigma) upper limits are 150 mJy. We combine our
results with others in the literature and use them to place constraints on the
existence of protoplanetary or dust disks around millisecond pulsars.
