yuh i checked on this page a couple of times. it says the function are only available on Windows 9.x, ME, NT4 and 2000. They have been added in PHP 4.0.4.

I'm using Win XP. Anyway, I did tried using the steps given, add the line extension=php_printer.dll; in the php.ini file, downloaded a php_printer.dll file into the extension folder. When i tried testing the printer_open() function, i get the error; Fatal error: Call to undefined function: printer_open() . I might have followed the steps incorrectly (downloaded the wrong file for php_printer.dll, copied into the wrong folder or missing another step).

Someone posted a thread that it is possible to use the function on win xp at at the bottom of the page but did not elaborate on how to do it. The thread was posted back in March 2004