Step 1: Exit from all Windows applications before installation. You will need to reboot after the installation is complete.
Step 2: Download and run the client installation package.

Step 3: On Windows Vista, select the Allow option to allow the installation program, vpnclient_setup.exe, to run.

Step 4: Click Next.

Step 5: Read the license agreement, then select the I accept the
license agreement radio button to accept it, and click Next; or click Cancel to refuse the terms and exit the setup.

Step 6: Click Next to accept the default destination folder (recommended),
or click the Browse button to select an alternate destination, then click Next.

Step 7: Click Next to begin the installation.

Step 8: Sit back and relax for a few minutes while the VPN Client is installed.

Step 9: Click Finish to exit the installation program.

Step 10: Click Yes to reboot the computer and complete the installation.