Run the Orbiter2016.exe file after downloading. This will extract and launch the installer dialog which guides you through the installation process. This method installs Orbiter as a standard Windows application, and provides desktop shortcuts, a start menu entry and uninstall option. You can only install a single instance of Orbiter.
After downloading, extract the Orbiter2016.zip file into a directory of your choice, e.g. "c:\orbiter2016". You cannot run Orbiter from within the zip file. It is not recommended to install Orbiter in \Program Files or \Program Files (x86) because Windows puts restrictions on these folders that might affect Orbiter behaviour.
The zip installation does not modify the registry or install files into system folders, but you may have to manually install the VC90 runtime libraries if they are not already present on your system.
To uninstall Orbiter completely, simply delete the folder you unpacked it to with all its contents.
A: The torrent download is recommended, because it is more robust and doesn't rely on the download server bandwidth. Only use the Http download if you can't use torrents.
A: It's a matter of personal preference. Both methods install the same Orbiter version. The MSI installer is more user-friendly, while the ZIP package requires a more hands-on approach.
A: The red icon launches the standalone Orbiter version with built-in graphics engine. The blue icon launches the graphics server version. You need to install and activate an external graphics engine, such as the D3D9Client, to get a 3D graphics display.
A: This indicates that the required runtime libraries are not installed on your computer. Orbiter ships with an installer for the required runtime package. Run the vcredist_x86.exe installer in the Install subfolder. Alternatively, download the appropriate MSVCR90 runtime library from the Microsoft website.