  Kinematically complete measurements of the $pp\to pp\pi^{0}$ reaction were
performed for beam energies in the range $292 - 298 $MeV. By detecting both
protons in coincidence with the large acceptance COSY-TOF spectrometer set up
at an external beam line of the proton synchrotron COSY-J\"ulich, total and
differential cross sections and energy distributions were obtained. A strong
enhancement is observed in the Dalitz plots resulting from the final state
interaction between the outgoing proton pair; the data are well reproduced by
Monte Carlo simulations with standard parameters for scattering length
$a_0$=-7.83 fm and effective range $r_0$=2.8 fm. The total cross sections
exceed the ones measured recently in internal target experiments at IUCF and
CELSIUS by roughly 50%. Arguments are presented which link this discrepancy
with the effect of the final state interaction pushing yield into the very
small-angle region and the near-impossibility of an internal target experiment
to cover just this range.
