We are looking at you data loader for Oracle R12 and in the setup you describes how to setup if forms server is running in Unix.
Our Oracle R12 are setup on Linux platform - is it possible to use your data loader on that ??
Yes you can use Forms Data Loader to load data into Oracle Apps R12 running under Linux. For further details please see https://www.formsdataloader.com/Forms_Record_Playback.htm