OpenVPN Windows XP
From BTGuard Wiki
Setup Instructions
1. Download the OpenVPN Installation Program.
OpenVPN Official Download Page
2. Double-click openvpn-install-2.3.2-I001-i686.exe to install.
HIT NEXT, CONTINUE, AND CONFIRM ALL STAGES OF INSTALLATION
3. Download OpenVPN BTGuard Configuration (ZIP).
4. Extract OpenVPN BTGuard Configuration to C:\Program Files\OpenVPN\Config
Setup Complete!