Chilkat v11.5.0 Release Notes

Pinned June 2, 2026

  ✨ New Features HttpCurl A new Chilkat class has been added: HttpCurl The Chilkat.HttpCurl class executes curl commands and can automatically resolve dependent values needed by a request. Variables such as {{access_token}}, {{site_id}}, or {{drive_id}} may appear in URLs, headers, query parameters, or request bodies. If a variable is not yet known, HttpCurl builds […]

Chilkat v11.4.0 Release Notes

Pinned April 1, 2026

  ✨ New Features Js A new Chilkat class has been added: Js is a minimal, standards-compliant JavaScript engine designed to embed JavaScript inside applications with very small footprint and fast startup. It executes JavaScript code inside an application without requiring a browser or large runtime. See About the Chilkat.Js JavaScript Engine Ai Provider — […]

Asynchronous HTTP

December 10, 2009 in Uncategorized

Notice: The functionality described here is deprecated and replaced by a newer model for asynchronous method calls. The newer model was introduced in Chilkat v9.5.0.52, and is identified by methods having names ending in “Async” which return a task object. The following example demonstrates the older, deprecated asynchronous HTTP functionality that allows for any HTTP […]

Debugging an HTTP Form Login

December 10, 2009 in Uncategorized

This is a summary of the steps I’m taking to debug the following problem: I am trying to login using Chilkat HTTP to this site: Startseite and after the login, there is a 302 redirect. After the redirect, the session is lost. I believe it could be another cookie related issue. 1. Make sure I’m […]

HTTP Session Logging

December 9, 2009 in Uncategorized

This example demonstrates how to use the new Chilkat HTTP SessionLogFilename property to log exact HTTP requests and responses to a file.  This can help in debugging… ASP: HTTP Session Logging SQL Server: HTTP Session Logging C#: HTTP Session Logging C++: HTTP Session Logging MFC: HTTP Session Logging C: HTTP Session Logging Delphi: HTTP Session […]

HTTP Cache-Control

December 8, 2009 in Uncategorized

Question: Using the HTTP component I’m connecting and downloading an RSS feed via a Proxy server (fantastic!!). Trouble is – the proxy is caching yesterday’s feed and I need to force the proxy to refresh it’s contents (that’s the proxy on my network – not the Chilkat local cache). How can I tel the HTTP […]

SMTP over HTTP Proxy

November 30, 2009 in Uncategorized

ASP: SMTP using HTTP Proxy SQL Server: SMTP using HTTP Proxy C#: SMTP using HTTP Proxy C++: SMTP using HTTP Proxy MFC: SMTP using HTTP Proxy C: SMTP using HTTP Proxy Delphi: SMTP using HTTP Proxy Visual FoxPro: SMTP using HTTP Proxy Java: SMTP using HTTP Proxy Perl: SMTP using HTTP Proxy PHP: SMTP using […]

POP3 over HTTP Proxy

November 30, 2009 in Uncategorized

ASP: POP3 using HTTP Proxy SQL Server: POP3 using HTTP Proxy C#: POP3 using HTTP Proxy C++: POP3 using HTTP Proxy MFC: POP3 using HTTP Proxy C: POP3 using HTTP Proxy Delphi: POP3 using HTTP Proxy Visual FoxPro: POP3 using HTTP Proxy Java: POP3 using HTTP Proxy Perl: POP3 using HTTP Proxy PHP: POP3 using […]

HTTP Progress Monitoring in C++

September 14, 2009 in Uncategorized

This blog post shows how to monitor the progress of HTTP uploads and downloads in C++.  The first step is to create a C++ callback class that derives from the CkHttpProgress base class.  You’ll be overriding one or more of the callback methods.  For example: class MyHttpProgress : public CkHttpProgress { public: MyHttpProgress(void) { } […]

VB.NET HTTP Download with percent-done progress monitoring

July 2, 2009 in Uncategorized

Here is an example: Dim WithEvents http As Chilkat.Http Private Sub http_OnPercentDone(ByVal sender As Object, ByVal args As Chilkat.PercentDoneEventArgs) Handles http.OnPercentDone ProgressBar1.Value = args.PercentDone End Sub Private Sub HttpDownloadTest() http = New Chilkat.Http() Dim success As Boolean ‘ Any string unlocks the component for the 1st 30-days. success = http.UnlockComponent(“Anything for 30-day trial”) If (success […]

Forcing Web Server to Deliver Fresh (Non-Cached) Response

April 24, 2009 in Uncategorized

To force a web server to send a fresh copy (not a cached copy) of the requested document, add a “Pragma: non-cache” HTTP header to the request. If sending a HTTP GET request via these methods: QuickGet, QuickGetStr, Download, etc., then add the Pragma header by calling httpObject.SetRequestHeader(“Pragma”,”no-cache”) prior to sending the GET. If the […]