I have Drupal 7 site on IIS 7.5 server.
Inside IIS Services Manager I choose user with administrator rights in anonymous authentication settings.
I'm sure that drush command is in evn path. When I logged as this user (Win7) I can call this command everywhere.
However when I try to launch this command inside Drupal module:
$output = array();
$res = exec('drush --version', $output, $retval);
$retval is always 1 (error), $output and $res are empty.
Different command (sqlcmd) works ok. Both commands has identical rights (file system)
What I am doing wrong here?
Using absolute paths solves my issue, but only for paths without spaces.
