please make sure the user has installed OpenVPN 2.2.2; OpenVPN 2.2.2 will install in
c:\program files (x86)\openvpn
on 64bit editions of windows, as OpenVPN currently is a 32bit app; all files which are located in
c:\program files\openvpn
are pretty much ignored.
Try uninstalling OpenVPN, move all config files from the 'config' directory to a safe place, delete both
c:\program files (x86)\openvpn and c:\program files\openvpn directories and re-install OpenVPN.
Also make sure that OpenVPN is always launched with elevated privileges