How to batch fliping any inverted polygons after Reset XForm

There are more than 1k objects in a max scene file, the normals of some objects have inverted after reset xform and else not, how to batch fliping the inverted polygons? use max script?

Thanks in advance!

Yes, you can use maxscript to make a simple script to add the flip polygons modifier (and collapse the stack if needed)

See this tutorial for some example scripts:

http://www.ofusiontechnologies.com/support/1299/support_1299_00.html

thank you very much!