Basically all computers you buy today are 64 bit architecture. If you mean 64 bit operating system (64 bit version of CENTOS) app-rpt will probably run on that. A couple of years ago, as an experiment I installed a 64 bit system, then ran the ACID install script and – while it made various warning messages during the compile - it ran just fine. Over the years I have seen where several other people have done the same.
73
Ken