Content of script test.php:
<?php
print 'Hi!';
print '<br>';
print 'QueryString: ' . $QUERY_STRING . '<br>';
print 'A: ' . $A . '<br>';
print 'Bye!';
print '<br>';
?>
<p>
<a href="test.php?A=B">test.php with parameter a = b </A>

After klicking on the link, no variable contents are displayed. What?s wrong ? If only have this symptom on W2K server  with iis5. On my development workstation (w2k german iis sp2) everything works fine (php also detects an error if you call the script without parameters. on the server no error msg comes up.) 

Thanks in advance !
Michael