64 bit process for plugin execution on Windows

We are running Sensu client across Linux, Solaris and Windows (multiple versions, 32 and 64 bit). One my my colleagues reports that plugins run in a 32 bit process on Windows 64 bit, but he needs this to be a 64 bit process; is there a way to get sensu-client on Win_64 to execute plugins in a 64 bit process?