Description:
------------
The execution functions like passthru, exec, and system do not work on PHP 5.0.3 to execute a program. No error message is returned. The functions however work with PHP 4.3.10 with the same code and same program.

The following is changed in my PHP.ini file:
extension_dir=C:\Program Files\PHP5
extension=php_mysql.dll
extension=php_gd2.dll
extension=php_curl.dll
error_log = error.txt
post_max_size = 20M
include_path = ".;m:\IS"
default_socket_timeout = 10

Reproduce code:
---------------
<?
$imagemagick='C:\Program Files\ImageMagick-6.2.1-Q16\convert.exe';
$filename="file.jpg";
passthru("$imagemagick $filename t-$filename");
?>

Expected result:
----------------
The script should copy the file file.jpg to t-file.jpg in the same directory using Imagemagick.

Actual result:
--------------
The file is not copied.