How to detect, from browser, if user is running in Remote Desktop session?

Question

Is there a ways to check inside a browser (e.g. javascript) if the user is running inside a Remote Desktop session?

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If the user is running their browser inside a Remote Desktop (i.e. Terminal Services), i want to disable animations on the web-site.

If this were a native application, as opposed to a web-site, i could perform this checking using:

//Native code
isRemoteSession = GetSystemMetrics( SM_REMOTESESSION );

or

//Managed Code:
isRemoteSession = System.Windows.Forms.SystemInformation.TerminalServerSession;

Is there a similar check that can be done inside the browser?

Note: Assume for the purposes of this discussion that the browser we're talking about is Internet Explorer 8.

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Update One: Perhaps something in How can you get the terminal service client machine name from javascript?

Answer 1

Perhaps you can read the SESSIONNAME environment variable? For a console session it should be CONSOLE and for an RDP session it should be RDP-TCP followed by a number.