Problems using Basic Auth with Enterprise Browser 1.6 on Windows CE 7

We're using Enterprise Browser 1.6 on Symbol MC32N0 using Android. We want to migrate to to Windows CE 7.0.

 

The use of the HTML-Buttons on Android is realy bad. We use Basic auth to authenticate against our realm.

We're running an PHP-Application on Windows Server / Apache.

 

On Android

config.xml

 

<Authentication>
  
<!-- Used for Digest Access Authentication and Basic Access Authentication -->
  
<!-- Global -->
  
<Username VALUE="testuser"/>
  
<Password VALUE="testpassword"/>
</Authentication>

 

Which results in the $_SERVER variable aus following:

 

$_SERVER['PHP_AUTH_USER'];

$_SERVER['PHP_AUTH_PW'];

 

On Windows CE

WindowsIE_Persistent and WindowsWebkitPersistent

 

<Authentication>
  
<!-- Used for Digest Access Authentication and Basic Access Authentication -->
  
<!-- Global -->
  
<Username VALUE="testuser"/>
  
<Password VALUE="testpassword"/>
</Authentication>

 

->  PHP_AUTH_USER and PHP_AUTH_PW won't even exist in $_SERVER variable.

 

Is there another Param in Windows config.xml to be set or is there a Windows CE Setting to be made?