From: Greg Ercolano <erco@(email surpressed)>
Subject: Re: [WINDOWS/ADMIN] Microsoft Remote Desktop + Maya/Mental Ray =
   Date: Fri, 23 May 2008 19:25:35 -0400
Msg# 1744
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Greg Ercolano wrote:
> A few companies bring to my attention a strange problem where apparently
> using Microsoft's "Remote Desktop" (RD) affects Maya's *node locked* 
> licensing system, causing "Could not get a license" errors [..]

    Dean Warren follows up with this info; much thanks to him 
    for these added details.

    Unfortunately the Macrovision link below seems to be stale,
    but there's probably similar docs elsewhere on their site.
	
Dean Warren wrote:
> Hi Greg,
>
> We ran into this exact problem @ guru a couple of months back and I
> discovered it has to do with flexlm + Remote Desktop.
>
> http://www.macrovision.com/pdfs/flexlm_licensing_end_user_guide.pdf
>
> "FLEXlm detects when a node-locked uncounted license is running under
> Windows Terminal Server. To run on Terminal Server remote machines,
> TS_OK must be added to the FEATURE line. Without TS_OK, a user running
> on a Terminal Server client is denied a license."
>
> We didn't implement the 'TS_OK' feature to the flexlm/maya license file,
> instead we just switched back to UltraVNC (we were using it previously
> and someone decided to switch to Remote Desktop, after which we had
> errors all over the place).

    So apparently this problem can be fixed by adding TS_OK to the
    FEATURE line of the maya license.dat file, according to Macrovision's
    docs on flexlm.

    Sounds like Remote Desktop uses Microsoft's "Terminal Services"
    in a way that affects flexlm's licensing system. VNC does not,
    which is why folks with VNC don't encounter this.

    This does *not* affect Rush's license system, as Rush doesn't use
    flexlm or Microsoft's Terminal Services.

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