Docblox: can not open input file docblox.php

Have just installed docblox on windows using PEAR. Am r开发者_StackOverflow社区unning into the error 'can not open input file docblox.php'. Any ideas?

docblox.bat and docblox.php both exist in c:\xampp\php, and this directory is in my path...

Thanks!

The docblox.bat script uses the PHP_PEAR_BIN_DIR environment variable to determine the location of your docblox.php.

Could it be that this has not been set on your computer?