I use Papercut as a little SMTP server for local dev on windows which uses ClickOnce, the install + update processes are painful, even worse than Adobe Flash Builder.
I just ran it, it updated needing 2 clicks and over 4 different popups shown.
It's an invasive, noisy, ugly, tech that was put to shame by Chrome's update tech.
I think you are been a little uncharitable to poor Clickonce. Clickonce came out a number of years before Chrome and at the time its simple publish model, automatic update detection, and incremental updates were light years ahead of the other clunky Window installers of the time.
I use Papercut as a little SMTP server for local dev on windows which uses ClickOnce, the install + update processes are painful, even worse than Adobe Flash Builder.
I just ran it, it updated needing 2 clicks and over 4 different popups shown.
It's an invasive, noisy, ugly, tech that was put to shame by Chrome's update tech.
So it's not worth comparing.