As the administrator, you can download and install the Reflection for the Web Launcher when you add a session.
In MSS, add a Reflection for the Web session and follow the prompts to download the Reflection for the Web Launcher Installer. Follow these steps.
On the MSS Administrative Console - Manage Sessions panel, click + ADD.
Select your Product — Reflection for the Web.
Select the Session type, such as IBM 3270.
Enter a unique Session name that does not exceed 64 characters.
Click LAUNCHER.
Click DOWNLOAD to download the Reflection for the Web Launcher, packaged as RWebLauncher.msi. When prompted, click Save File.
From your Downloads location, click and open RWebLauncher.msi.
Proceed through the RWebLauncher Setup wizard and click Finish.
At this point, the Reflection for the Web Launcher is installed, and you are able to add and launch sessions without being interrupted by dialog prompts to install the Launcher.
Unfortunately, the session you began adding above was not saved.
Return to Manage Sessions to repeat the steps to add and then launch the session.