First, install Citrix DNE network drivers:

For 32 bit Windows:

For 64 bit Windows:

Second, install the Cisco VPN client:

32 bit

or 64 bit

If you are running Windows 10, follow these next steps, otherwise continue below:

Unzip the files to a folder you can find easily (somewhere like your desktop or Downloads folder), then navigate there in Windows Explorer.

Right click on the vpnclient_setup.msi file and select 'Troubleshoot compatibility"

Let it detect issues. It should end up with this screen:

Click "Test the progam" and continue on with the instructions below. (After this completes, click Next and finish the Compatibility Troubleshooter)

Install everything with the default settings, click a bunch of next, continue, etc.

Run Regedit.exe (Windows key + R).

Navigate to:
Right click, select modify on “DisplayName”.

Delete anything like “@oemX.inf,%CVirtA_Desc%” from the data, so that it reads only "Cisco Systems VPN Adapter for 64-bit Windows"

Continue here for all versions of Windows:

Once the program is installed, you can find it in the Start Menu under Cisco Systems VPN Client. The VPN Client will allow you to connect to the server.

Open the VPN Client and click Import. Navigate to the FieldStack VPN.pcf file (contact Support if you don't have this yet). Once the file has been imported, click Connect.

The VPN Client will ask for a Username and Password. Use the provided credentials to login.

The program will automatically minimize to the system tray (far right of the Windows task bar) for future interactions. You will need to access this to disconnect from your session upon completion.