S140: Uninstall WINDOWS

Use the uninstaller to delete installed (Joiner) fonts and any Sassoon Joiner program Folders. After doing so, a Restart is always required to flush the Windows Fonts Registry before the new program is launched!
Open C:\Program Files.
Double-click 'Sassoon Joiner 310 Uninstall.exe'.
Click 'Delete' older version fonts.
Click 'Delete' for Sassoon Joiner program Folders
Click 'Exit'.
Restart the computer.
Click Start > All Programs. If any Sassoon Joiner program groups remain
listed, right-click > Delete.

If uninstaller file is not displayed, you will need to download the
latest version of Sassoon Joiner which has the Uninstaller program. Agree to the Licence Agreement and Continue. When 'Custom' and 'Install' buttons appear, click 'Custom'. Uncheck all items except 'Sassoon Joiner Uninstall'. Now click Install.
The Uninstaller will run and display Delete buttons for Sassoon Joiner fonts and programs. Click each Delete button and note the resulting message. When both buttons have completed, click Exit.
Restart the computer. Download again, the latest version of Sassoon Joiner
Choose Run, Agree to the Licence Agreement, Continue. Click Custom button and this time make sure all items are checked, then click Install. The Installer will install to C:\Program Files by default and may again want to Delete older version fonts before launching Sassoon Joiner.
Once launched, go to the menu Help > Register and enter your Username and enter (or Paste) your Serial Number. Please Exit the program now. Launching the now Registered program with Start > All Programs >Sassoon Joiner, puts entries for the fonts into the Windows Fonts Registry for use by all programs that have a font menu. Select File > New to display a new blank window. Entered keybaord text should now join.

If problems persist, please file a Bug Report