Limitations during a session with an on-demand target

Limitations during a session

1. Lock Screen

   When the target system is locked during a remote control session, the following message is displayed on the controller, "Please wait... Screen capture temporarily interrupted by the target operating system until the end user completes a secure desktop action (UAC prompt, fast user switching, screen locked). Screen capture will resume when the action is completed". The lock screen on the target is not displayed in the remote control session window. The controller user also loses input control.

2. UAC Prompts on Secure Desktop
   When a UAC prompt is displayed on the target system, it is not displayed to the controller in the remote control session window. Instead, the following message is displayed, "Please wait... Screen capture temporarily interrupted by the target operating system until the end user completes a secure desktop action (UAC prompt, fast user switching, screen locked). Screen capture will resume when the action is completed". The limitation does not affect Linux™ because this operating system does not have User Account Control.

   Note: You can bypass this limitation by setting the UAC level to “Notify me only when apps try to make changes to my computer (do not dim my desktop)". In this case, the UAC prompt window is not rendered in the secure desktop and the On-demand target can capture it.

3. Control High Level Integrity Windows™

   Some windows require privileged access to be opened due to the High Level Integrity. When one of these windows have the focus, the controller is not able to send mouse or keyboard input to such windows on the target system. For example: certain Control Panels, Regedit, or Administrator Command Prompt windows. The actions taken from the user on the target machine when the action can still be viewed from the controller but there is no way to interact with the window from the controller.

4. Modern UI
   When the Modern UI, formerly known as Metro, is visible, the target is unable to display its user interface on top of the display. This issue affects the Start Screen and also the Modern UI style applications. The following UI functions on the target are most affected by this issue.

   • User acceptance prompts
   • On-Screen Session Notification (OSSN)
   • Guidance actions
   • Highlighting and drawing

   The taskbar is not visible also in the Modern UI. Therefore, the target's notification icon is not visible or accessible, and users cannot see whether a session is active. This limitation affects Windows™ 8 and Windows™ Server 2012 operating systems only because the Modern UI was first introduced in those versions.

5. Fast user switching

   When you switch to a different target user account, the following message is displayed on the controller, "Please wait... Screen capture temporarily interrupted by the target operating system until the end user completes a secure desktop action (UAC prompt, fast user switching, screen locked). Screen capture will resume when the action is completed".

6. Inject Ctrl+Alt+Del

   Users cannot inject Ctrl+Alt+Del during a remote control session, except users with Administrator rights on Windows™ Vista and later. Workarounds for this limitation are detailed in Ctrl + Alt + Del workarounds.

7. Full screen text mode

   When a user switches a text mode application to full screen, the following message is displayed on the controller, "Please wait... Screen capture temporarily interrupted by the target operating system until the end user completes a secure desktop action (UAC prompt, fast user switching, screen locked). Screen capture will resume when the action is completed". The full screen text is not displayed in the session window.

8. Logging out

   When a user logs out, all the applications that are running in that user's session are terminated. The on-demand target runs as an application, therefore it is terminated too.

Ctrl + Alt + Del workarounds