I'm curious how you'd call this through the setup.inf method of unattended installation.. For instance, you're supposed to put:

HKLM,"%RunOnceEx%\install1",3,,"%24%\install\klcodec224f.exe" /verysilent /loadinf=".\silent.inf""

but the first set of quotes around the .\silent.inf seems like it would end the command. Can you all it from a command prompt or anything? I'm kinda confused actually, any help would be greatly appreciated.

Quotes need to be escaped with a preceding backslash character as described here:

http://unattended.msfn.org/xp/runonceex.htm

patters, that's from a batch file.

to have quotes inside, you need """
yes, 3 quotes.