Fast user switching allows you to do just that: switch users faster, without actually logging off of the first user. You can leave programs open and running with one user while another user logs on and does work.
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this is aplicable for vista but im sure bout windows 7...... Start,Run --> Gpedit.msc --> Local Computer Policy, Computer Configuration, Administrative Templates, System, Logon --> "Hide entry points for Fast User Switching
This isn't an answer, but i have the same problem. i installed 'bricopack' (a visual style program). i uninstalled it and now the fast user switching service says what you said when i try and start it.
fast packet switching: A packet switching technique that increases the throughput by eliminating overhead. Note 1: Overhead reduction is accomplished by allocating flow control and error correction functions to either the user applications or the network nodes that interface with the user. Note 2: Cell relay and frame relay are two implementations of fast packet switching.
To switch to a different user account on a computer, you can typically click on the user icon or name in the top corner of the screen and select "Switch User" or "Log Out." This will take you to the login screen where you can enter the credentials for the desired account. Alternatively, you can use keyboard shortcuts like "Windows Key + L" on Windows to lock the screen and access the login options. On macOS, you can use "Fast User Switching" from the Apple menu.
Directly copied from http://www.bleepingcomputer.com/forums/lofiversion/index.php/t205023.htmlBD Agent......"C:\Program Files\BitDefender\Bitdefender 2009\bdagent.exe" BitDefender Switch Agent. Startup background task whose role is to ensure that BitDefender continues to work properly and protect your PC when you have Windows XP and there are multiple users defined on your PC and Fast Switching is enabled (Fast Switching is the feature where you can switch to another user profile on your PC without first logging off the current user).BDAgent.exe Recommendation : Down to end-user requirements. If you do not have Windows XP, then you can disable this program on the Startups tab. Ditto if you do have Windows XP but Fast Switching is not enabled or you are the only user defined on this PC. In any other scenario, leave this task enabled. Others say . If you disable it, you will not be able to see Virus alerts and Firewall questions.
Windows XP does not include the facilities to do this, though the codebase is technically capable. More than one user's applications can be left running on the system using "Fast user switching", but more than one user can usually not interact with the system. Installing a third-party VNC or SSH server may allow multiple users to run and control applications on the computer simultaneously.
The Windows NT Logon Application (LogonUI.exe) is a component of the Windows NT operating system that manages user authentication during the logon process. It provides the graphical user interface for users to enter their credentials, such as usernames and passwords, and handles the initial validation of these credentials. This application is crucial for maintaining system security by ensuring that only authorized users can access the system. LogonUI can also support features like fast user switching and various authentication methods.
uncheck welcome center and fast user switching in the control planel
Windows Vista has numerous security improvements over XP, such as User Account Control (UAC).
At http://windowsxp.mvps.org/ginadll.htm there is this article by one of Microsoft's MVPs. The article states (paraphrased):Symptom"When you attempt to turn on Fast User Switching or Welcome Screen, you may receive a message stating that a program used CSGina.dll ( or any other DLL ginamsi.dll etc ) to disable the Fast User Switching and the Windows Welcome screen features. The exact error message follows: A recently installed program has disabled the Welcome screen and Fast User Switching. To restore these features, you must uninstall the program. The following file name might help you identify the program that made the change: " Download ginadll.reg and save to desktop. Double-click to apply the REG file.[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]] 14:40, 1 Aug 2007 (UTC)[[User:71.233.106.135|71.233.106.135]]I just downloaded the ginadll.reg and it worked as described.
To change the way a user logs on, open the Control Panel, and then open the User Accounts applet. Click Change the way users log on or off. The user account window opens. If you want to require users to press Ctl+Alt+Delete to get to the logon window, then uncheck Use the Welcome screen. If you want to allow only one user logged on at a time, then uncheck Use Fast User Switching. When you are done with your changes, click Apply Options to close the window.