Read this topic here...
http://www.msfn.org/board/index.php?showtopic=17940Find out what switches it uses and have a trial, then post back any findings negative or positive here.
If its an <unknown installer> then you will have to right click on it and select extract from the drop-down menu and try to extract all files to a temp dir to see if there's an .msi inside it that can be used.
If so see this link:
http://unattended.msfn.org/intermediate/apps/wininstall.htmIf all this produces no results then try running the setup.exe from the command prompt...
CODE
Start>Run>whatever.exe /?
>enter
CODE
Start>Run>whatever.exe /help
>enter
This might give you a list of available parameters.
If all this fails to produce switches for you then you are going to have to learn how to use AutoIT or beg for a script from one of the AutoIt experts or repack the installer yourself.