Hello,
I want to use the .NET library just for getting the existing files in a remote folder and download them to a local folder. But I'm working on different servers and I  don't know the exact 
SshHostKeyFingerprint. But I'm sure the connection is safe, because I have a direct link between PC and Server.
In the documentation of the 
SessionOption class is a property called 
GiveUpSecurityAndAcceptAnySshHostKey (
https://winscp.net/eng/docs/library_sessionoptions#giveupsecurityandacceptanysshhostkey) but I can't use it, this property is not available in my IDE (VB2010) => It's not a member of 
WinSCP.SessionOption
I'm working with the SCP-protocol.
The version of my library is 1.0.7.3394.