Hello What's the deal with these guys here: 1) VS2012_ULT_enu.iso 2) en_visual_studio_ultimate_2012_x86_dvd_920947.iso 3) en_visual_studio_ultimate_2012_x86_dvd_2262106.iso First is trial ? second is "full release" ? third is "full release updated"? If I install trial with serial do I get full featured program lifetime ? Regards