Complex sentence: Some users may choose to use instant Virtual Private Network (VPN) applications such as Hamachi to make usage over the Internet much easier or VNC connection can be established as a LAN connection if VPN is used as a proxy.
Split into simpler sentences: Some users may choose to use instant Virtual Private Network (VPN) applications such as Hamachi to make usage over the Internet much easier. Alternatively, a VNC connection can be established as a LAN connection if VPN is used as a proxy.