Ovpn 3
I installed OpenVPN Connect for Windows v.3.1.0.361 for 32bit OS and after that I could install OpenVPN Connect for Windows v.3.1.0.361 x64 just over it (while and when 32-bit version was installed). In my tests and several reinstalls that way I made a mistake: I correctly (Add and Remove Programs) uninstalled 32-bit version.