How to configure XHProf on windows?
I just finally installed the XHProf profiler under Windows7 x64 - PHP 5.3.x. Assuming that you have a functional PHP environment, this checklist should work for you too:  


Download the pre-compiled XHProf 0.10.3 - PHP 5.3 VC9 NTS binary.  
Paste the downloaded dll file to PHP extensions directory.
(You can find the directory path in extension_dir directive of php.ini file.)  
Append extension=php_xhprof.dll directive to the php.ini.
Restart the web server and searchphpinfo() output for XHProf. found? done! 
You might also want to use XHGui fork instead of the built-in UI.