Cant find install switches

[saitoh183]

Im looking for the way to install Gadwin Printscreen and dBpowerAMP Music Converter silently but i cants seem to find the switches for them. I dont know what type of installer they use and i tried typying a /? and /help in a cmd window and it just starts the program.

Here are the screenshots of both.

[saitoh183]

Gadwin Printscreen

[Astalavista]

just by the logo i can tell that printscreen is a wise installer

[saitoh183]

and the other?