Try it with exception handlers: 

try {
  $comUsers = new COM($acctStr);
}
catch (exception $e) {
  print_r($e);
}

Looks like PHP is messing up valid syntax


exception Object
(
    [message:protected] => Unknown exception
    [string:private] =>
    [code:protected] => 0
    [file:protected] => C:\Inetpub\wwwroot\ntadmin\comtest.php
    [line:protected] => 15
    [trace:private] => Array
        (
        )

    [message] => Failed to create COM object `WinNT://Camden': Invalid syntax

    [file] => C:\Inetpub\wwwroot\ntadmin\comtest.php
    [line] => 15
)

I've comitted a quick little "fix" for this; you can
pick it up in the next development snapshot in around
3 hours time.
Please let me know if it works for you.

The bug fix worked thanks and I can now do the instatitaion. However there are issues at the next stage :(

This works under 4 and not 5 

I suspect "while($obj = $comUsers->Next())" (dont know how to put in the exception handling code there)


<?php
$acctDomain = "Camden";
echo "Making COM connection using ADSI\n\r";
$acctStr = "WinNT://".$acctDomain;
echo "$acctStr\n\r";

$comUsers = new COM($acctStr);
echo "Bound";

while($obj = $comUsers->Next()) {
	$uClass = $obj->Class;
	$uName = $obj->Name;
  	echo "$uName \t $uClass \n\r";
}
?>

Should add fails silently after echoing 'Bound' to console

Put the try { } catch () stuff around the whole of your script and lets see what's going wrong.
(Yes, PHP should at least tell you about the uncaught
exception; that appears to be another bug)

Its one of the usefule errors :)

C:\Inetpub\wwwroot\ntadmin>php comtest.php
Content-type: text/html
X-Powered-By: PHP/5.0.0b2-dev

Making COM connection using ADSI
WinNT://Camden
Boundexception Object
(
    [message:protected] => Unknown exception
    [string:private] =>
    [code:protected] => 0
    [file:protected] => C:\Inetpub\wwwroot\ntadmin\comtest.php
    [line:protected] => 12
    [trace:private] => Array
        (
        )

    [message] => <b>Source:</b> Active Directory<br/><b>Description:</b> Unspecified error

    [file] => C:\Inetpub\wwwroot\ntadmin\comtest.php
    [line] => 12
)

C:\Inetpub\wwwroot\ntadmin>


Line 12 is the 'while' line

One of the differences between PHP 4 COM and PHP 5 COM is that PHP doesn't do magic for IEnumXXX interfaces, and that
is what I suspect the problem is here.

That means that the magical $obj->next() stuff won't
work, and should never have worked in the first place,
because they aren't really methods of the com object,
but of an iterator interface. (The PHP 4 COM stuff had
quite a few of these hacks).

The plan for PHP 5 is to allow this:

foreach ($comUsers as $user) {
    $uClass = $obj->Class;
    $uName = $obj->Name;
    echo "$uName \t $uClass \n\r";
}

but to implement that, I'm waiting for some
engine magic, so I'll prod the relevant
people about it.

of course, I meant this:

foreach ($comUsers as $user) {
    $uClass = $user->Class;
    $uName = $user->Name;
    echo "$uName \t $uClass \n\r";
}

I'll look into the API docs for ADSI later
to sanity check my other comments also.

Many thanks for your time.

The foreach contruct use appeals to my sensibilites much more than the while one.

Hope the proding gets the results :) 

- i'm stuck at the momement as PHP4 wont be changed to fix to a show stopping bug and 5 wont work yet.

Fixed some time ago.