windows - SETX doesn't append path to system path variable -

I have tried the command to add some paths to the system path variable from the batch-file: < Pre> setx path "% PATH%; C: \ Program Files \ MySQL \ MySQL server 5.5 \ bin"

After running the batch-file above, above the path, System variable path is examined

< P> You can also type C: \ Program Files (x86) \ AMD APP \ bin \ x86_64; C: \ Program Files (x86) See all Windows variable welcome content below:

 ) \ AMPAP \ bin \ x86;% SystemRoot% \ system32; % SystemRoot%;% SystemRoot% \ System32 \ Wbem;% SYSTEMROOT% \ System32 \ WindowsPowerShell \ v1.0 \: C: \ Programmable File (x86) \ ATI Technologies \ ATI.ACE \ Core-Static;   
 What am I doing?   
 
 
 to return piggy @ @ on the north of Andoro (lack of representative to comment on me  
 If you want to change the system-wide environment variable, you should see  / m , a  
  setx PATH " PATH%; C: \ Program Files \ MySQL \ MySQL Server 5.5 \ bin "/ M   
 setx.exe is about placement / M, BTW must be at the end of it.