Please tell me whether I can install SAP ECC 6 or 4.7 in my system (232 GB 1 GB RAM) I am starting ABAP course and I would need this just for practice. Please let me know which one of this is better 4.7 or 6 (for practice)? I have windows XP , if I install 2003 server (2003 serer + XP) in the same...