No. :-( I use the 64 bit version of Ghostscript and it looks like
preview.el only works with 32 bit Ghostscript.
All of the respective executable names can be customized (by the way:
what kind of stupid idea is it to put the architecture in the executable
name?).
I am not sure to have understood you. Do you mean that I may change
some file on my machine in such a way that preview works with
gswin64c.exe instead of gswin32c.exe?
For testing, you could put
(setq preview-gs-command
(executable-find "gswin64c.exe"))
in your `.emacs' if you have "gswin64c.exe" in your PATH or something
like
(setq preview-gs-command
(expand-file-name
"C:\\Program Files\\gs\\gs9.18\\bin\\gswin64c.exe"))
if not and see if it works.