Windows 64bit http://downloads.metasploit.com/data/releases/metasploit-latest-windows-installer.exe
Windows 32bit http://downloads.metasploit.com/data/releases/metasploit-latest-windows-installer.exe
linux 64bit http://downloads.metasploit.com/data/releases/metasploit-latest-linux-x64-installer.run
linux 32bit http://downloads.metasploit.com/data/releases/metasploit-latest-linux-installer.run