SIM PSK31/63 now supports Commander
FYI, the software by ON4NB now supports Commander for rig control . The version with Commander support is at http://www.sim.on2vhf.be/sim_psk.rar
The on line user guide is at http://www.sim.on2vhf.be/sim_users_guide_en.pdf
The software can be configured for Commander by simply checking the DX Lab Commander check-box in the General Interface Settings area.
I tested it with a Flex and PowerSDR and works fine.