Hi ,
From where you are loading the file. Application server / Desktop ?.
For such type of requirements ( automation ) use application server ( DIR_HOME).
Simple shell script will work in putting the file to DIR_HOME with unique name always.
May be BASIS will help on this.
1. Users will put the files in specific folder.
2. Write a shell script to get the files from the folder and put it into the DIR_HOME with unique name.
3. In the info package maintain the DIR_HOME file address.
Hope it gives some idea.
Regards,
Sai