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Technote 030"No user interaction allowed" error or missing display, network volume and printer information
Problem:What causes the the command error "No user interaction allowed (Error=-610)" command error when issuing commands to a PC agent? At the same time I've noticed that display, mapped network volume, and printer information is also missing for this PC agent. Solution:This behavior typically occurs because the LANrevAgentInstallerHelper.exe application is not running. Normally this is because the Windows workstation is at the login screen without a logged-in user. To resolve this problem, have the local user log in before reapplying the command or gathering the missing inventory information again. The LANrevAgentInstallerHelper.exe application is used to perform various task based on the current logged-in user such as launching an application in the context of the current logged-in user, copying a file to the desktop of the current logged-in user, or getting inventory information specific to the current logged-in user. It is also used to gather user specific information such as display, mapped network volume, and network printer information. It is launched as soon as a user logs in and is closed when the user logs off. When no one logged in there is no instance of LANrevAgentInstallerHelper.exe running. When multiple users are logged in locally, such as with Windows VISTA or XP with fast user switching enabled, then an instance of LANRevAgentInstallerHelper.exe is running for each user session. It's important to note that LANrevAgentInstallerHelper.exe is not launched by the agent but rather by the system. When the LANrev agent needs LANrevAgentInstallerHelper.exe to perform some task but it is not running you'll receive the command error "No user interaction allowed (Error=-610)". Below is a list of commands that depend on LANrevAgentInstallerHelper.exe. You may receive the above error message with these commands when LANrevAgentInstallerHelper.exe is not running.
1. Any command that allows you to run something under the context of the "Current logged-in user"
Certain information items are specific to the currently logged-in user - the user that has the screen for fast user switching - because they are gathered by the LANrevAgentInstallerHelper.exe application. If it's not running then these info items are not gathered and the agent log file will contain an entry like "Error while getting the display information: {-610}". Below is a list of information items that cannot be gathered if LANrevAgentInstallerHelper.exe is not running. - Display information
Missing volume information is not a problem with fixed local volumes since their information is not tied to the local user and thus is not gathered via a different method than LANrevAgentInstallerHelper.exe. In other words, if there is no logged-in user you will see volume information for fixed local volumes but not mapped network volumes. On Windows some printers are specific for the current logged-in user such as network printers or the default printer. Locally attached printers do not depend on the current logged-in user. In other words if there is no logged-in user you will see only locally attached printer information and none of the printers is the default printer. There are some situations when LANrevAgentInstallerHelper.exe is not running even if a user is logged-in.
1. The user terminates the LANrevAgentInstallerHelper.exe process.
In all cases LANrevAgentIntalleHelper.exe will be started the next time a user logs in locally.
Date: 2008 Mar 6 |
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