Also, that dialog does not look like a crash, it looks more like windows thinks the program has stopped working... because you might have filled some insane numbers in it and it just loops or is doing stuff that takes a long time.
Application: kicad
Version: (2015-10-14 BZR 6269, Git 3ca8244)-product release build
wxWidgets: Version 3.0.2 (debug,wchar_t,compiler with C++ ABI 1009,GCC 5.2.0,wx containers,compatible with 2.8)
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
*/
I mark this incomplete because it does not even state the kicad version used.
Also some more informatoin is needed. How many times has it crashed? What did you fill in? Can you reproduce it?