Oracle Database Discussions

I'm trying to silently install the database client version 11.2 for Windows 7 32-bit. I am a full administrator on the system with UAC disabled. I am using the command line "setup.exe -silent -waitforcompletion -responsefile c:\client_installer\oracle.rsp" where oracle.rsp is the response file that has worked with previous versions of the client installer. For some reason I keep getting the error "Response file is not specified for this session". All of this worked fine for version 11.1.

I've tried moving to different folders to eliminate permissions issues in spite of being an administrator. I tried renaming the response file, recreating it manually, and recreating it via the installer program. I've tried the path with and without quotation marks. I tried removing and reordering the command line options one by one.

Either I'm making a bone-head mistake or something really weird is going on here. Could there be a config file that is overriding my command-line options?

Any help is greatly appreciated.