wapttray is a utility working in user context, it is located
in the WAPT folder
C:\Program Files (x86)\wapt.
wapttray launches at logon if the option has been ticked during installation. The icon will show up in the Windows tray toolbar.
We can also launch wapttray manually with a startup GPO pointing
C:\Program Files (x86)\wapt\wapttray.exe.
The tray icon is handy for autonomous users that want to choose the right moment to upgrade their packages.