A virtual installation process and supporting environment. The virtual installation process may be considered a two-stage installation process. In the first stage a pseudo-installation may occur in which a user is provided an installation experience by a virtual installation environment that stores changes to be made as a result of the installation process. In the second stage of the installation process, the changes that were previously stored may be made to the host system. These changes may include changes to the registry, filesystem and/or any other host system components. The second stage may be initiated by a user attempting to launch the application for the first time. Other triggers may also be supported.