grate! but mis-typing exist on mtimesx_build.m for 64bit Windows
on line 247 -> largearraydims = '-largearraydims';
it cause error like,
Warning: MEX could not find the library "argearraydims"
specified with -l option on the path specified
with the -L option.
... mex mtimesx.c build completed ... you may now use mtimesx.
so it muse be replace by "largearraydims = '-largeArrayDims';"