Password authentication failed

I am attempting to log in to a remote SFTP site using WinSCPnet.dll from a windows service using the LocalSystem account. The log in fails with a "Password authentication failed" error. If I use the same parameters with the GUI the log in succeeds. Below is the VB.net code snippet I'm using to setup the Session Options.

With SessionOptions
.Protocol = Protocol.Sftp
.HostName = "65.242.47.171"
.UserName = "healthpro"
.Password = "*****"
.SshHostKeyFingerprint = "ssh-rsa 2048 66:fb:7a:3d:8c:07:f0:ef:b0:89:d8:f5:92:0a:3e:c4"
End With
I suppressed the password but they are the same for both tests. I attached a file showing the logs for the GUI and windows sessions. I noticed the windows session is missing
. 2015-01-21 10:46:21.039 SFTP Bugs: A,A
. 2015-01-21 10:46:21.039 SFTP Server: default
along with what looks to be information messages
. 2015-01-21 10:46:21.228 Waiting for the server to continue with the initialization
. 2015-01-21 10:46:21.228 Detected network event

Any help you can give on this will be greatly appreciated.

Thanks!

Ken

It looks like there are lot of spaces as the end of hostname (where it probably does not matter) and username (where it matters):

Any idea where these come from?

Can you attach a complete log file from .NET assembly?