We build it ourselves, from source, on a known-clean system. This is a 'false positive': the file does not contain any malware. Windows users: Some virus scanners (most notably 'Microsoft Security Essentials') are flagging 'Lib/distutils/command/wininst-14.0.exe' as malware.Please see the documentation regarding Embedded Distribution for more information. Windows users: There are redistributable zip files containing the Windows builds, making it easy to redistribute Python as part of another software package.Windows users: There are now 'web-based' installers for Windows platforms the installer will download the needed software components at installation time.Windows users: If installing Python 3.5.1 as a non-privileged user, you may need to escalate to administrator privileges to install an update to your C runtime libraries.
(Also known as the '圆4' architecture, and formerly known as both 'EM64T' and 'x86-64'.) They will not work on Intel Itanium Processors (formerly 'IA-64').
