With the release of Opalis 6.3 we have provided an update so that Opalis now supports the latest Windows Server and Client platforms.  This allows all of the Opalis 6.3 infrastructure to run on Server 2008 R2 which is of course 64bit.  Is Opalis 6.3 64bit?  No it is still 32bit only and this will not change with the current generation of Opalis.

More information by following the link

bit · generation · opalis · platform · update