UltraVNC

Viewer - be able to pull up a profile a command-line variable, or save a profile as default. It would be great to be able to run:
and

But when doing it via repeater, you enter the "id" for login.
...
software works - technically. But it's very unintuitive. Clearly no clear thought was given to the GUI.

You've taken the idea of making things easy for the end user, who just has to click an EXE. But you've forgotton about the geek ...