[argyllcms] PostScript to TIFF converter for Win32. Help!

I have tired to search appropriate free software to convert targen *.ps or 
*.eps files into the TIFF format. For a half year I can't find the free program 
for MS Windows XP that can do the conversion of CMYK *.ps or *.eps to CMYK TIFF.
I have try to use "Ghostscript 8.61" with "GSview 4.9" graphical interface. 
This software works nice with an RGB TIFF files, but I have not found any way 
to get the CMYK TIFF file from CMYK PostScript file. May be there is a hand 
work with command line is needed, but I can't understand how to work with 
Ghostscript command line interface.
Many other projects can do the conversion, but not free (as high as $300..$1500)
Now I use Adobe Photoshop 8.0, because the newer version of photoshop can not 
"parse the file", either *.ps or *.eps. Moreover, many people havn't Photoshop 
at all, but use only MS Windows.

Is there simple *.exe utility, may be command line, that can convert? May be it 
usefull to include TIFF export code in targen directly?

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