Verilog: FFT With 32K-Point Transform Length --- sfftmodel can't be found!

I got the sfftmodel.mexw32 file from altera's website, and simply changed the extention to .dll. My computer is of 32 bits, but I keep getting the error message: tsfftmodel.dll can't be loaded correctly. Could somebody tell me how to fix the problem? Besides, I simply put this sfftmodel.dll file in the same folder along with all the other files such as fft_32k_tb.m and fft_small_tb.m.

Also, is there a way to change this sfftmodel.mexw32 (or sfftmodel.dll) into sfftmodel.m file?

Thanks in advance.