该ActiveX控件为项目平台提供了基本功能，如获取本机网卡信息，FTP，SFTP上传下载文件等。-The ActiveX control provides the basic function for the project platform, such as access to the machine FTP, SFTP card information, upload and download files etc..

java中支持直接调用sftp服务进行文件上传下载(supports the direct call of SFTP services for file upload and download)

delphi使用SFTP操作文件，包括上传、下载、删除、重命名，有源码有demo