Description:
------------
I've been trying to call a Win NT executable from a PHP4 script and the 
result is very strange. The browser hangs, and not finish to show results. If I stop the navigation, nothing appens.

The script execute an win app like that: 
<?
//...more code here..
exec("c:\appdir\appname.exe");
//...more code here..
?>
The code after the execution is not show in the browser. The app executes normally, but after the execution the script maybe hangs the browser.

PHP was installed like a ISAPI module, not CGI.

All help appreciated. 




Reproduce code:
---------------
<?
 $server_path = "c:\\sites\\mysite\\uploaded\\";
 mt_srand((double)microtime()*1000000);
 $filename_doc = strval(mt_rand(1, intval(1000))) . ".doc";
 move_uploaded_file($_FILES['userfile']['tmp_name'],  $server_path . $filename_doc);
 $filename = strval(mt_rand(1, intval(1000))) . ".htm";
 $arr = array();
 $exe_app = $server_path . "ConvertDoc.exe";
 $params  = " /S " . $server_path . $filename_doc . " /F9 /T " . $server_path . $filename . " /C4 /M2 /L " . $server_path . "wordlog.log /V";	
 
 exec($exe_app . $params, $arr, $return_val);