Rolling out Windows OpenVPN clients.
This guide is based on [http://openvpn.se/files/howto/openvpn-howto_roll_your_own_installation_package-Rev1.1.html HowTo Roll Your Own OpenVPN Windows Installation Package].
The Windows build machine must have [http://nsis.sourceforge.net/Download The Nullsoft Scriptable Install System] installed. Next obtain the [http://www.openvpn.se/files/install_packages_source/ installation source package]. If problems persist with differing versions of OpenVPN on the client and server try using the same version as the server on the client. E.g. Server version: 2.0.7, download OpenVPN GUI install source 2.0.7. In theory all 2.0.x releases should be compatible with each other.