Hi:

I have created a VB.NET Libary Class that uses the WsftpApi.CreateConnection object:
mFtpConn = mWsftpApi.CreateConnection(HostName, UserName, Password, WsftpConnectionTypes.WSFTP_CT_FTP, 21)

I call the function that references this code from another VB Windows Forms application. The first attempt works, I successfully upload a file. If close down the program compley, everything is fine. Only when I try to run the same process about 5 seconds, does it fail on the code referenced above. The error I receive is:

I found the solution to this issue was to upgrade from 8.0 to 8.1, this resolved the issue.