How to remove vsdatant error

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vsdatant.sys file information

The process TrueVector Device Driver belongs to the software TrueVector Device Driver or vsdatant or ZoneAlarm or ZoneAlarm with Antivirus or ZoneAlarm Security Suite or ZoneAlarm Pro or ZoneAlarm Anti-virus by Zone Labs Inc (www.zonelabs.com) or Zone Labs, LLC or Zone Labs LLC (www.zonelabs.com).

Description: File vsdatant.sys is located in the folder C:\Windows\System32. Known file sizes on Windows XP are 372,816 bytes (12% of all occurrence), 392,824 bytes, 372,824 bytes, 394,192 bytes, 368,256 bytes, 280,344 bytes, 394,872 bytes, 279,880 bytes, 394,952 bytes, 274,232 bytes, 366,736 bytes, 189,792 bytes, 395,080 bytes, 394,904 bytes, 279,656 bytes, 271,216 bytes, 280,104 bytes, 177,048 bytes, 188,240 bytes, 145,800 bytes, 271,344 bytes, 198,720 bytes, 270,672 bytes.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. It is a Verisign signed file. File vsdatant.sys is digitally signed. The service has no detailed description. vsdatant.sys is not a Windows system file. vsdatant.sys seems to be a compressed file. Therefore the technical security rating is 15% dangerous, however also read the users reviews.

Recommended: Identify vsdatant.sys related errors

Important: Some malware camouflage themselves as vsdatant.sys, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the vsdatant.sys process on your pc whether it is pest. We recommend Security Task Manager for verifying your computer's security. It is one of the Top Download Picks of 2005 of The Washington Post and PC World.

Installing the Cisco VPN Client software and running the uninstall process shut my home computer's Internet access down for 3 days! It was only after a Microsoft 3rd tier support tech spent over 4 hours inspecting my machine that the culprit was discovered. WATCH OUT FOR THIS PROBLEM IF YOU UNINSTALL CISCO VPN CLIENT!
  Bob G,  

Causes BSOD on Dell Latitude D500
  chiptechsmith  

File used by Zone Alarm firewall, causes blue screen of death. Solution: uninstalling Zone Alarm in Safe Mode.
  Piotr Zimoch  

I think is a Zone Alarm File, I have to disable the multiCore Support in bios in my Dell XPS1210 and windows started good, so, I enabled the MultiCore Option in Bios and reboot and All Works Well, see yaa
  Robert   (further information)

When F-Secure and Cisco VPN client is installed it couses BSOD when VPN is trying to connect. It is part of Cisco VPN soft. If driver is disabled (not removed) everything works fine. This driver interferes with AV (Panda, Kaspersky, F-secure, etc.) software if it has any firewall option, and causes BSOD. As it is started by program on demand, i think it is not essential.
  Karolis Narbutas  

bei der installation von zonealarm suite trat ein fehler auf dass er vsdatant nicht findet
   

I have never used Zone Alarm but I do use Cisco VPN and I have received this error.
  Rose  

Its registry entry can cause http failure and stop internet connectivity. Can cause NetBios and DHCP to fail (erros 4321 and 2001 respecively). Set its registry start parameter to 3.
   

It is used by ZoneAlarm. I have gotten BSOD from 394160/397312 bytes. I hope they figure out the problem.
  Video Game Dictator  

It is a Zone Alarm file. To remove it: Device Manager, View Show hidden devices, Non plug and play drivers Right Click on vsdatant.sys disable. Uninstall Zone Alarm - then Reinstall if you want.
  Ryan the lion Weaks   (further information)

It can cause 721 error when connecting to VPN
  kapo  

Also used in Cisco VPN Client.
  Hans  

This file is also used with Cisco VPN Client, if you have stateful firewall enabled. Causes a BSOD with F-Secures firewall.
  Dixon  

DeviceIoControl function from the vsdatant.sys driver.may lead to a loss of integrity.
  david peire  

After installing en later uninstalling Zonealarm, my Laptop acted in strange way, in the startup i got error and soundcard fail o work. just rename the file vsdatant.sys repair my problem
  H Shaban  

Indeed it is also used by Cisco VPN client, the statefull firewall part. Caused problems on my machine. Disabling service vsdatant in regedit solved problems concerning connecting to tcp port 80.. (Which makes you wonder why it wants to hijack this port?)
  DvdB   (further information)

According to Process Explorer it "belongs to" Zone Labs on my XP SP2 box.
  Alan   (further information)

vdsdatant causes windows stop blue screens less than 2 minutes after booting the laptop, there was no solution from dell but uninstalling zonealarm security suite in windows save mode solved the problem!
  jasper  

Also used in Cisco secure VPN client as part of the firewall security. This has caused bsod, but can't get rid of it and still vpn in to work.
  smccarthy  

Do we need zone alarm in xp? I'm going to kill anyway
  FourQ XP  

Truevector device driver is necessary for Zonealarm (firewall). Do not remove unless have a replacement ready. (Reminder: check if something is trying to masquerade as vsdatant.sys)
  AySz88  

I uninstalled Zone Alarm (free) and installed Zone Alarm Pro and now this appears in RegSeeker as an orphan to be deleted.
  Johnny Faster  

Vsdatant.sys is also a legit component of Cisco VPN Client software. I believe that they use Zone Alarm soft as part of their stateful firewall.
  Alan Batten  

As of Oct-2006 the new version is BSOD for Windows 2000
  Shannon Jacobs  

gehört zu zone alarm, verursachte bei mir aber bei verbindung zum internet jedes mal einen bluescreen... datei gelöscht, internet funktioniert jetzt, zone alarm nicht mehr...
   

whenever i restart my pc it gives me the blue screen of death. this happens a lot now. ever since i started to use internet explorer. its either a coincodence or I.E. is causing the problem
   

gehört zu ZoneAlarm-Firewall Software und ist nach der Deinstallation übrig geblieben, sollte ohne Probleme gelöscht werden können!
  RanuKanu   (further information)

Zone alarm File
   

If the files size is other than that mentioned, should it be removed?
  jill  

It cause the "Blue Screen of death" when u start the pc at first time. After that u reset and when u reboot the pc this file don't work and u can use the pc.
  -theAcId-  

it was the problem what my computer did startup everytime. 3 nights searching before I find it. Thanks for help!!! I removed the file from the system32 folder by using command promt. Finally!!!
  Gijs  

ZoneAlarm Firewall (Core-) Protection Service. -- If you have Zonealarm do not stop this service ;)- ....
  DiGiFinE  

It caused my system to repeatedly reboot. It should have been removed when I uninstalled ZA. Therefore, I think it's a malicious leftover file.
  cojys6  

It is also used by CISCO VPN application if you have stateful firewall enabled
  Re Álvarez  

device manager, show hidden devices, non plug and play drivers, disable vsdatant
  mokke  

ebenfalls Bestandteil des Cisco VPN Clienten // part of the Cisco VPN client
  Quedel   (further information)

189792 bytes file caused Windows bugcheck (STOP screen); ZoneAlarm had been removed years previously
  Mark  

used in Zonelabs Zonealarm program
   

Belongs to zone alarm nothing wrong with it i've got no problems
  Anacho  

twice been the source of computer failing to boot
  doc paul  

Part of CheckPoint Integrity client product
  Rick Mahn   (further information)

Causes system crash with Cisco VPN client V3
   

causing blue screen of death after booting (Win XP Pro/Dell Dimension 9150/Intel DCP
  Fergus  

After a Zone alarm upgrade, Norton utilities detected file was missing. However, it does not create problem: Zone alarm works without it
  JLC  

Zone Alarm "Firewall" program driver
  Kevin  

This program gets loaded over and over again untill the computer stops working . I have found it to be loaded up into the hundreds of times.
  Dan  

I have no problems on my desktop but my portable crashes with blue screen + ntoskrnl & vsdatant.sys. My solution is to use vad*.sys ver. 3.7.143 (2003 file) on the portable
  John St  

trojans hides in it found tr/dldr.zlob can only find with avast during pre boot scan //advise
  johnny on the spot  

Die Datei hält unter c:\windows\internet logs\ die Dateien fwdbglog.txt und fwpktlog.txt geöffnet, außerdem c:\windows\system32\vsconfig.xml. Wer bei einer unsauberen ZoneAlarm-Deinstallation den Treiber noch im System hat, wird Probleme mit einer Neuinstallation bekommen
  rover  

Be sure to remove from Registry
  Troy Mullins  

Believe part of Zone Alarm Pro
  Alan  

I confirm its related to Zone Alarm. It gave me crashes (blue screen of death) when using IExplorer. - system: XP SP2, ZoneAlarm non-commercial, updated in August 2005. Problem actually started to appear after update. If file is removed, ZA stops working, obviously.
  SMacedo  

I want to delete the file
  Murali Krishnan  

it s causing my computer to restart at start up
   

True-Vector-Treiber sind von Zone-Alarm, Zeitpunkt paßt zu letztem Updateversuch, dann Deinstallation Zone-Alarm, wurde von Deinst. übriggelassen.
  Markus Hausburg  

something left behind after a zonealarm uninstall
   

Die Datei ist der TrueVector-Device Driver zur Zone Alarm-Firewall.
  Reinhard Czembor  

used in Zonelabs Zonealarm program go to zonelabs site and download alternative driver file
   

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