Hi W 
Is there an advantage in using SecureLine as a Stand Alone ?
I am just curious.
Greetz, Red ( aka E ).
Hey Red,
I'm not sure if there is any advantage other then the obvious. The Standalone version serves as an option for anyone wanting a VPN service while not installing Avast Internet Security Products.
I use a licensed 'standalone' version for a couple of reasons; I wanted to support the product by using the service on a production machine that "does not" have Avast Security product installed, and I can also move it around on different machines regardless of Internet Security installed..

That being said, imho Secureline VPN service does not succeed well at "Connection consistency", optional/additional settings (as they are non existent) or effective support; all areas that are better achieved by lesser expensive vpn services.
