SysProfile wrote:

1) Just as FileExists function exists, I need DirectoryExists.

Session.FileExists actually checks for directories too. If you want to make sure that it's a directory, use Session.GetFileInfo and test RemoteFileInfo.IsDirectory.
https://winscp.net/eng/docs/library_session_getfileinfo

2) An event that shows the percentage of the file in progress (uploading or downloading) would be useful.

See https://winscp.net/eng/docs/library_session_filetransferprogress

Before starting, I apologize for my English.

Two functions seem necessary to me
1) Just as FileExists function exists, I need DirectoryExists.
2) An event that shows the percentage of the file in progress (uploading or downloading) would be useful.

Thank you so much