asynframe-sdk_v1.7.1-20240816.zip is from https://github.com/netsecsp/asynframe
IPv4/IPv6 ftp/ftps client program under windows
- support ftp/http and socks4/4a/5 proxy
- support download directory
IPv4/IPv6 ftp/ftps server program under windows
- support download directory
- support download from offset