Debugging & Profiling PHP on Windows

Hi, I'm trying to debug and profile a PHP app on Windows but I can't seem to get xdebug's Profiler to enable. Has anyone encounter this problem before? phpinfo() always shows the below regardless of what settings I have in php.ini: xdebug.profiler_aggregate Off xdebug.profiler_append Off xdebug.profiler_enable Off xdebug.profiler_enable_trigger Off xdebug.profiler_output_dir \ xdebug.profiler_output_name cachegrind.out.%p The other xdebug's settings change when I make the corresponding changes in php.ini. The environment is IIS7.5 with PHP 5.3.2-NTS-vc9 as FastCGI. Xdebug is 2.10-5.3-vc9-nts Thanks for your help, Tommy