when opening .ipn file in 2012 & 2011 which was created on old version the 2012 is NOT responding. anybody can help. - mmistry@tyco-bspd.com
Are you trying to open 2012 files with 2011? You can't open files created in a newer version - only option is to save as a Step/Iges in 2012 and open that in 2011 (but you will lose your feature-tree).
Sam M.
Inventor and Showcase monkey
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no I tried to open it in 2011 and 2012 but both time it crashed (NOT RESPONDING)