LATEX: Miktex and cwtex installations

It used to be trivial, but this time it takes me more than five hours.
Tips are as the following:

1. Edit c:\autoexec.bat. Change all d:\ to be c:\ if disk D is not a writable hard drive.
2. Make sure the Miktex folder is not 'read-only.'
3. Change cwps.bat file to set gsview in a correct path. (if the path of gsview in bat files is not set correctly.)
   

Then, have fun! (0rz...)