The method ChangeDir changes the current directory on the FTP server file system to the subdirectory specified by the Path parameter.
The function returns the following error codes:
0 ... everything is OK
-2 ... path not found
-3 ... cannot read file (access error)
-9 ... unspecified error
Hint 1:
Most FTP servers are Unix-based. Thus the (Path) normally uses slashes (/) instead of backslashes (\) to separate directories. Failing to use the correct separation character will result in an error (-2).