These files are left behind when uninstalling the client on Windows: libpulse-0.dll libpulsecore-6.0.dll libpulsecommon-6.0.dll We made a mistake updating things when upgrading PulseAudio in bug 5589.
Works like a charm - while 4.8.0 leaves some PulseAudio libraries behind, 4.8.0post-5483.r32577 cleans everything up when it's uninstalled.