I uninstalled it, deleted folders, Reg entries etc. and re-downloaded from the link you gave me. Same thing. If I rename libopenconnect-5.dll to something else and execute openconnect.exe, I get a missing file error. Here's the contents: Volume in drive C is CSC ESOE Volume Serial Number is 445E-E9A0 Directory of C:\Program Files (x86)\OpenConnect 01/28/2015 03:46 PM <DIR> . 01/28/2015 03:46 PM <DIR> .. 06/22/2014 08:25 PM 23,507,968 icudt52.dll 06/22/2014 08:25 PM 1,798,656 icuin52.dll 06/22/2014 08:25 PM 1,304,064 icuuc52.dll 03/07/2014 01:56 PM 117,262 libgcc_s_dw2-1.dll 08/03/2014 08:21 AM 489,773 libgcc_s_sjlj-1.dll 08/03/2014 08:23 AM 701,869 libgmp-10.dll 11/19/2014 05:23 AM 5,421,402 libgnutls-28.dll 08/03/2014 08:23 AM 4,329,793 libhogweed-2-5.dll 08/03/2014 08:23 AM 3,365,637 libnettle-4-7.dll 10/13/2014 03:12 AM 310,410 liboath-0.dll 11/28/2014 03:34 AM 244,749 libopenconnect-5.dll 09/24/2014 09:33 AM 892,786 libp11-kit-0.dll 03/07/2014 01:56 PM 970,766 libstdc++-6.dll 10/13/2014 03:12 AM 144,592 libstoken-1.dll 08/03/2014 08:24 AM 251,290 libwinpthread-1.dll 08/21/2014 05:54 AM 1,581,689 libxml2-2.dll 11/06/2014 10:34 AM 101,390 libz-1.dll 09/02/2014 08:39 AM 16,958 logo64.ico 11/28/2014 04:10 AM 517,632 openconnect-gui.exe 11/27/2014 08:02 AM 105,594 openconnect.exe 01/28/2015 03:23 PM <DIR> platforms 11/06/2014 10:44 AM 4,786,176 Qt5Core.dll 09/11/2014 08:40 AM 4,597,248 Qt5Gui.dll 09/11/2014 08:37 AM 1,412,608 Qt5Network.dll 09/11/2014 08:49 AM 5,883,904 Qt5Widgets.dll 09/01/2014 03:59 AM 240,536 tap-windows-xp.exe 08/26/2014 01:56 AM 225,448 tap-windows.exe 01/28/2015 02:49 PM 80,418 uninstall.exe 10/01/2014 02:19 AM 8,990,552 vcredist_x86.exe 10/20/2014 04:18 AM 7,388 vpnc-script-win.js 30 File(s) 72,398,558 bytes 3 Dir(s) 21,870,473,216 bytes free -----Original Message----- From: David Woodhouse Sent: Wednesday, January 28, 2015 3:13 PM To: Steven Petraglia Cc: Niels Peen ; openconnect-devel at lists.infradead.org Subject: Re: OpenConnect v6 Core Dump On Wed, 2015-01-28 at 15:00 -0500, Steven Petraglia wrote: > > WARNING: This version of openconnect is v6.00-239-gae5e62a but > the libopenconnect library is v7.00-unknown Those are not compatible. Whatever openconnect.exe you're running, it's picking up a *different* version of the libopenconnect DLL. Which is particularly impressive because openconnect v6.00 should be looking for libopenconnect-3.dll, while openconnect 7.00 would provide libopenconnect-5.dll. So I don't know how it's managed to use a version that's *so* wrong. Unless someone's manually renamed a DLL? Either way, delete all instances of openconnect.exe and libopenconnect-*.dll that you can find, install *one* version that should hopefully be consistent with itself, and things should start working. If you ever see the above message, things are expected to be broken. -- dwmw2