I want to install an visual basic application (I have already the executable)That
will run like a service with no user interface. just a window that display
information when somebody click
on the icon which is on the extrem right part of WINDOWS taskbar. where the
systeme time is display.
the application icon is inserted when a windows session is open.the application
will run in background.

Somebody told me that it is something in relation with the registery system.
what tools or Api can help me in that way ?

For system time when somebody right click on the time a menu apear, how can
I Implement this ?