For Windows XP/Seven/8.1 users, there is a classical standalone installation program for Monteverdi, available from the OTB download page after each release.
It is also possible to get Monteverdi package through OSGeo4W for Windows XP/Seven users. Package for Monteverdi is available directly in the OSGeo4W installer when you select the otb-monteverdi package. Follow the instructions in the OSGeo4W installer and select the otb-monteverdi. The installer will proceed with the installation of the package and all its dependencies. Monteverdi will be directly installed in the OSGeo4W repository and a shortcut will be added to your desktop and in the start menu (in the OSGeo4W folder). You can now use directly Monteverdi from your desktop, from the start menu and from an OSGeo4W shell with command monteverdi. Currently, you should use the 32bit OSGeo4W installer but we will soon distribute Monteverdi package for 64 bit installer.