===== Link =====
Original info found [[https://forum.ultravnc.net/viewtopic.php?f=15&t=17690|here]] as of 2019-06-21.

===== Original Content =====

Question:
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Hi,
i'm using vnc sc in my company with windows xp OS and i use ultravnc 1.02 version in Listen Mode to receive all incoming connection over tcp/ip port 5500 no registry;
on my pc is installed Windows 7 x64 and this work fine with XP, 2000 and 2003 OS;
recently, my company has required to deploy Windows 7 pc's to refresh some old machine;
i tried to connect with this new machine and establish connect correctly but time response is very very slow.
what's the problem with 7?
i've disable windows firewall as well as windows defender without success.
what can i do to improve the same time response i've with XP OS?
thanks in advance,
francesco
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Answer:
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I found the solution in the forums to slow win7/vista performance that worked for me.

On the client side right click the UVNC connection icon and deselect
"poll full screen fast" click apply but do not close instead minimize the icon to the taskbar during the session or it will revert back.
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