Always wrap the download in a try...finally block to ensure file streams are closed, even if the connection fails.
DL a file from the web - Cross-platform - Delphi-PRAXiS [en] delphi skachat s interneta fail
A classic choice for older Delphi versions or specific socket-level control. It requires an external TIdSSLIOHandlerSocketOpenSSL for HTTPS support. Always wrap the download in a try