YSL Installation Procedures Topics Installing YSL for Use with Enterprise: YSL Classic Installing YSL for Use with Voyager This section describes how to install YSL. The installation procedures vary based on whether you are installing YSL Classic or YSL.Net, and whether you are using Enterprise or Voyager. Differences between procedures for YSL Classic and YSL.Net are clearly noted. Follow the procedures based on your system setup.