Hi Xdebug and co works just fine on windows. IDE like eclipse or phpstorm as well. Cheers, On 3 Aug 2010 01:57, "Alice Wei" <ajwei@xxxxxxxxxxxxx> wrote: Hi, I am exploring some of the possible tools that I could use for PHP debugging purposes on Windows operating system. Before, I always use a Linux system on the side by connecting it remotely to debug my PHP when it crashes, or if it does not display the desired output. Does anyone know any affordable, possibly free tools that I could debug PHP scripts with? Thanks for your help. Alice