TinCanTech I don't believe it is , currently. https://community.openvpn.net/openvpn/ticket/866#ticket
Pippin Could --auth-nocache be an option? "this directive will cause OpenVPN to immediately forget username/password inputs after they are used" https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
TinCanTech Unfortunately, that only effects the openvpn.exe process .. not the openvpn-GUI.exe process ..