Disconnect from all openvpn’s, close the client.

Go to start -> programs -> openvpn -> utilities

Right click the “add a new tap adapter” shortcut and choose run as administrator

Go to your “c:\program files (x86)\openvpn\config” directory, create a subdir called VPN2(or whatever you like)

Move your OpenVPN files for your 2nd connection into this newly created folder.

Rename your *.ovpn file to an easily recognizable name.  Note: this is the name you will see when choosing which VPN to connect to.

Restart your openvpn client.  Now that you have two TAP adapters you can connect to both.