Chilkat HTTP C++ Library

• Send GET, POST, or HEAD requests to an HTTP server.
• Supports SSL/TLS.
• HTTP DELETE and PUT.
• Resume interrupted download capability.
• Progress monitoring and abort capabilities (event callbacks).
• Save cookies to a persistant XML-based file store.
• Automatic save and re-send cookies from file or memory cookie storage.
• Automatically add cookies from a persistent file store to HTTP requests.
• Sophisticated caching capabilities.
• Cache can extend across multiple hard drives.
• Basic HTTP authentication (login/password).
• NTLM (Windows-Integrated) authentication.
• Kerberos, and Negotiate Authentication
• Supports HTTP proxies w/ proxy authentication.
• SOCKS4 and SOCKS5 proxy support.
• Two caching algorithms: LMFactor and constant-freshness.
• Automatically follow redirects.
• Read and connect timeout properties.
• Custom HTTP request headers.
• Handles international (non-English) web pages including Asian and Middle Eastern languages.
• Automatically manages a pool of connections with HTTP servers.
• Mimic FireFox or Internet Explorer.
• Supports client-side certificates for SSL.
• Provides access to all HTTP response header fields.
• XMLHTTP
• Multipart/form-data for easy uploads to HTTP server.
• POST XML
• HTTP PUT
• HTTP DELETE
• Resume (re-start) Downloads
• XML RPC
• Client-side SSL Certificates
• Custom header fields

A 1-Developer Bundle, which includes licenses for all components and libraries offered by Chilkat, can be purchased for $289