what command to tell windows to say 'yes'?

[shapeless]

im working on making an unattended winxppro cd, but one hangup, I'm going to want to install 7zip(its like winrar but freeware), its a self-extracting file, and it lets me use a /Q for quiet mode, but unfornuately it still asks 'do you want to install this'?

now once this happens it comes up with yes or no, and yes is highlighted. now my question, is there a way to tell windows to say yes to that automatically? i need it to either input a 'y' or carriage return. any help would be appreciated

-shapeless

[XtremeMaC]

look at the application switches forum

I'm sure I saw 7-zip in there

[shapeless]

i totally didn't see that applications forum. and 7zip is the first entry on that sticky! cool thanks