RMS Express under Wine
# install wine
sudo port install wine
# install winetricks http://wiki.winehq.org/winetricks
wget https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks
chmod +x winetricks
#install .net 3.5 sp1
sudo port install cabextract
./winetricks dotnet35sp1
#install rms express
wine msiexec /i rms_express_1-3-6-0_setup.msi
#run rms express
cd /Users/mckeehan/.wine/drive_c/RMS\ Express/
wine "RMS Express.exe"
Resources http://www.winlink.org/RMSExpress https://plus.google.com/106209295280626219515/posts/7qcqczPDEEr