!!! Warning !!!
You have reached this page because an external website has directly linked to it. The information contained here is no longer valid. The Shrew Soft VPN Client is now distributed using cross signed drivers. Installation on the Vista platform requires no additional steps.
!!! Warning !!!
Introduction
Installing the software on a Vista 32bit OS version is similar to installing on a Windows 2K/XP OS. An Unsigned driver warning will be displayed but you can proceed. Installing the software on a Vista 64bit OS version will also display the warning and allow you to proceed but will refuse to load any unsigned drivers. If you do this without taking precautions, all Ethernet, WLAN and Dialup adapters will stop working. The only way to avoid this situation is to disable signed driver verification in the OS.
Changing the OS Load Options
To disable signed driver verification, you must use the bcdedit utility to alter the OS load options. Here is the procedure.
1) In the Start > Accessories menu, right-click on Command Prompt.
2) Click Run as administrator.
3) Confirm the operation in the User Account Control.
4) Type the following command and press enter.
bcdedit -set loadoptions DDISABLE_INTEGRITY_CHECKS5) Reboot the OS for the changes to take effect.
To re-enable signed driver verification, you must use the bcdedit utility to revert the OS load options. Just make sure you remember to remove the Shrew Soft Client from your system.
1) In the Start > Accessories menu, right-click on Command Prompt.
2) Click Run as administrator.
3) Confirm the operation in the User Account Control.
4) Type the following command and press enter.
bcdedit -set loadoptions DENABLE_INTEGRITY_CHECKS5) Reboot the OS for the changes to take effect.
Using the F8 Boot Menu
There is an option in the Vista boot F8 menu which allows you to disable signed driver verification. If you use this option to boot the OS, it will be possible to install and use the Shrew Soft VPN client but only for that single session. Once you reboot the OS, it will re-enable signed driver verification and all Ethernet, WLAN and Dialup adapters will stop working. You need to either disable signed driver verification using the procedure shown above or uninstall the Shrew Soft VPN client.
