  Mid-rapidity $K^{*0}(892)\to K\pi$ and $K^{*\pm}(892)\to K_S^0\pi^{\pm}$ are
measured in Au+Au and pp collisions at $\sqrt{s_{NN}}$=200GeV using the STAR
detector at RHIC. The $K^{*0}(892)$ mass is systematically shifted at small
transverse momentum for both Au+Au and pp collisions. The $K^{*0}(892)$
transverse mass spectra are measured in Au+Au collisions at different
centralities and in pp collisions. The $K^{*0}(892)$ mean transverse momentum
as a function of the collision centrality is compared to those of identified
$\pi^{-}$, $K^{-}$ and $\bar{p}$. The $K^{*}/K$ and $\phi/K^{*}$ ratios are
compared to measurements in A+A, $pp$, $\bar{p}p$, $e^{+}e^{-}$ collisions at
various colliding energies. The physics implications of these measurements are
also discussed.
