Activex object alternative

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Javascript

PHP

ActiveX

Hi everyone!!

I'm working on an intranet website where the name of the person connected is display. Like, if John Doe connect to his session, i want to recover is windows username, so, when his open the portal, John Doe is display with all information without a login page.

I try the ActiveX object

var wshell = new ActiveXObject("WScript.Shell"); 
var username = wshell.ExpandEnvironmentStrings("%USERNAME%");

My problem is that is my portal is for a lot of people in intern and i'm not authorized to use activeX for security.

There are any possibility to go get Windows Username without using an ActiveXObject? Without to put a login page.

If possible, i need something that i don't need to 'activate' something on the computer (like authorized activeX on each IE since a have more then 200 computers will use the portal).

I look up since 3 days for that without finding something working to change it.

My portal work on PHP and Javascript.

What I have tried:

Looking in PHP and Javascript stuff without success!!