I have to make a statement here. Yes on Unix it is faster. But with
tightvnc and a solid colour on the desktop (no picture) at 8bit res I
find it to be quite acceptable. I have tried the xp terminal services
but have found that vnc is just as fast if you tweak it.

Now I just started using Esvnc, and there is an option for the server to
poll full screen fast, and a turbo option that is even faster but takes
a little cpu usage. Now the other setting I adjust on all my windows
servers running vnc is the video hardware acceleration. Set it to none
and everything goes faster. So over a 1meg cable to a 3 meg dsl I get
speeds that are identical to being on a 100mb network or at that are
comparable to the console.

So to summarize, always tweak for your settings and use and it will be
great.

Steve

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On
Behalf Of Freddy Jensen
Sent: Friday, August 30, 2002 11:26 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Windows XP remote desktop versus VNC

Bringing my Office Unix/Xwindows desktop to my home
machine (WinXP Pro) has always been very efficient
with VNC, but using VNC to bring my office WinXP
desktop to my home machine has always been very
sluggish and not efficient enough to use on a
regular basis.

But now I just tried WinXP's remote desktop feature
and discovered that it works great. It is much faster
than VNC, and it doesn't have any of the occassional
redraw problems that VNC has. Apparently it works 
just fine tunneling through a VPN connection.

I think the reason for the performance difference is
that the remote desktop service is built into Windows
and has access to secret hooks that other applications
(VNC) don't have access to. And then of course there is
the fact that the remote desktop feature is able to
disable the windows server on the physical screen (on
the server machine) so double redraws are eliminated.

I don't think any amount of improvement to VNC's 
compression methods can bring VNC up to the same 
performance level as WinXP's remote desktop service.
Of course I am only talking about the case when both
the server and the client are WinXP machines.

I think the only way to improve the performance of
the VNC server running on windows is to find a way
to do what the remote desktop is doing, namely
find a way to disable the screen server when a 
remote client connects. But I doubt that the
necessary windows-hooks are exposed to applications.

Freddy
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