Since the new 8.40 version of TSplus, there is no need anymore for a Java plugin to be installed on the client browser.
In previous versions of TSplus, Java was necessary in order to launch the Windows Remoteapp client.
You can access the Windows RemoteApp client by downloading and installing a small Windows plugin.
This operation is needed only once per client.
The message displayed below will stay even after you have installed the plugin.
This is the message displayed after you download the RemoteApp plugin:
This message can also be displayed for your first connection if you are using Firefox, check the "Remember my choices" to disable this warning for your future connections.