Cisco VPN Client Uninstall Problem

http://www.howtonetworking.com/Cisco/ciscovpnclient1.htm

How to uninstall Cisco VPN client

In most cases, you uninstall the Cisco VPN Client by using the InstallShield uninstall utility packaged with the client (available by going to Start > Programs > Cisco Systems VPN Client > Uninstall VPN Client). You can also use the Windows add/remove utility to uninstall Cisco VPN Client.

If above mentioned uninstall applications fail, you can uninstall Cisco VPN Client manually by deleting files and modifying the Microsoft Windows registry.To do that, please following these steps.

1.    Run regedit.

2.    Remove the key at HKEY_LOCAL_MACHINE > SOFTWARE > Cisco Systems > VPN Client.

3.    Remove the keys at HKEY_LOCAL_MACHINE > SOFTWARE > Deterministic Networks.

4.    Remove the keys at HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > Uninstall > {5624c000-b109-11d4-9db4-00e0290fcac5}.

5.    Delete the following directories.

o        C:\Program Files\Cisco Systems

o        C:\Program Files\Common Files\Deterministic Networks

6.    Delete all the old Deterministic NDIS Extender (DNE) files.

o        dne2000.sys from %SystemRoot%\system32\drivers.

o        dne2000m.inf and dne2000m.pnf from %SystemRoot%\inf.

o        The Original Equipment Manufacturer (OEM) enumerations of the dne2000.inf and dne2000.pnf files. The OEM enumeration .inf file is a file called oem<some numeric value>.inf. For example, files could be called oem2.inf and oem2.pnf.

o        dneinobj.dll from %SystemRoot%\system32. You may need to reboot before this file can be removed.

7.    Delete the cvpndrv.sys file from %SystemRoot%\system32\drivers.

8.    Reboot the machine and install the VPN Client.

Note: Remember to remove the setup.exe file from the temp files directory since it may trigger setup to run again.

Note: you should backup registry before making any changes.