Showing posts from September, 2013

Citrix Hooks - Troubleshooting

Citrix Hooks - Troubleshooting After clicking on a link via published Internet Explorer that opens a streamed VNC session through an ActiveX control, VNC does not displayThis morning, one of my clients upgraded their internal site that allows users VNC access to the point of sale computers. They were able to log in, but unable to launch VNC. You could see that the vnc session was opened, but to the users, they could not see the window at all. They were getting to the internal site via published IE8 in a XA6 environment.

First thing was to see if it was a hook that was causing the issue. To disable all hooks, you will need to have the following registry "DWORD" in place [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Citrix\wfshell\TWI\" "SeamlessFlags"=dword:00e6dea7

Now after killing all my sessions and then launching IE, the second VNC window opens. This tells me there is an issue with one of the hooks. Until I found out there was a GUI that sets the hooks …