Installation Error 1720 Cisco VPN Client on Windows XP

Unanswered Question
Jul 12th, 2010

I am trying to install the Cisco VPN Client on a Windows XP SP3 computer. I keep getting an error 1720 when I try to install the vpn Client. I tried everything I know to get this installation to complete. Can anyone help me here.

I have this problem too.
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Chris G Fri, 08/13/2010 - 12:54

I was having the same problem but on a Win7 machine. I spent a lot of time looking up sulotions to no avail for me.

My final working solution for Win7 was to enable the local Administrator account, log in, and then install. It wouldn't work under another user account regardless of whether or no i 'ran as administrator'.

As for WinXP, the most detailed solution (although far from a simple fix) can be found at:


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