Some applications installers written with Installshield allow you to do silent installs. This requires that you create a response file to store all of your default answers. Check this link out, maybe it'll work for you.
http://documentation.installshield.com/robo/projects/helplib/IHelpSetup_EXECmdLine.htm#rParam As far as other installer types, you'll have to check their respective documentations to see if they provide any kind of silent install mechanisms. -- http://mail.python.org/mailman/listinfo/python-list
