# Installation of McStas 2.5 on Windows 64 bit systems ## IMPORTANT A: * If you are behind a proxy server, please use the commands ```bash set HTTP_PROXY=http://your_proxy_ip:port ``` ```bash set HTTPS_PROXY=https://your_proxy_ip:port ``` in a cmd.exe shell and start the Perl and McStas installers from there ## IMPORTANT B: * Please install [strawberry-perl-5.26.3.1-64bit.msi](http://download.mcstas.org/current/windows/strawberry-perl-5.26.3.1-64bit.msi) BEFORE attempting to install the McStas metapackage!!! ## IMPORTANT C: * Please install the [McStas 2.5 metapackage](http://download.mcstas.org/current/windows/McStas-Metapackage-2.5-win64.exe) * The [extras](http://download.mcstas.org/current/windows/extras) folder provides binaries for Microsoft MPI and NeXus, which can be utilised by the McStas metapackage installation * An alternative to installing this version is to follow the instructions posted at http://www.mcstas.org/news/2016.html under the heading of "Use Microsofts 'Windows subsystem for Linux' for running McStas under Windows 10" ## In case of issues Please report any trouble with the repository to [mcstas-users](mailto:mcstas-users@mcstas.org)