libgvfscommon0 1.5.5-0ubuntu1 (amd64 binary) in ubuntu lucid

 gvfs is a userspace virtual filesystem where mount runs as a separate
 processes which you talk to via D-Bus. It also contains a gio module
 that seamlessly adds gvfs support to all applications using the gio
 API. It also supports exposing the gvfs mounts to non-gio applications
 using fuse.
 .
 This package contains the libgvfscommon library that is used by the
 backends.