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 — […]

Chilkat v11.3.0 Release Notes

Pinned December 16, 2025

  The main features of this release focus on Chilkat’s Ai class, enabling interactive AI response streaming directly into embedded desktop application browsers. It supports Azure, custom base URLs for OpenAI-compatible providers, and local providers like Ollama. ✨ New Features Ai Real-Time Streaming AI Responses to Embedded Browsers in Desktop Apps — Stream AI responses […]

Chilkat v11.2.0 Release Notes

Pinned November 3, 2025

Previous Version: Chilkat v11.1.0 Release Notes The main addition in v11.2.0 is the Chilkat.Ai class, and the Chilkat.StringBuilder.MarkdownToHtml method. Ai: The Chilkat AI class provides a unified API for interacting with different AI providers: OpenAI, Google, Claude, xAI, Perplexity, and DeepSeek. It provides functionality for conversation management, multimodal inputs, and streaming mode. Markdown to HTML […]

Semantic Versioning Starting with Chilkat 10.0.0

Pinned September 26, 2024

Starting with the v10.0.0 release (end of September 2024), Chilkat moves to standard semantic versioning.   Prior to this release, for various technical reasons, Chilkat was stuck with versions 9.5.0.xx, where only xx changed. For this first leap to semantic versioning, where the major version changes to 10 (from 9), there are no backward incompatible changes.  […]

UnlockComponent LastErrorText shows exact string passed to it.

July 21, 2010 in Uncategorized

If the string argument passed to UnlockComponent or UnlockBundle is NOT a purchased unlock code, then the LastErrorText will contain the exact string passed to it by your application.  In this case, the string “Hello World” was passed to UnlockBundle. If UnlockComponent returns 0/false, check carefully the exact string being passed to it.  Make sure […]

426 Connection closed; transfer aborted.

July 21, 2010 in Uncategorized

Problem: An FTP transfer fails with the following message found in LastErrorText: 426 Connection closed; transfer aborted Solution: A local firewall may be blocking the connection. Try switching between Active and Passive mode and try again. See these examples: ASP: Active and Passive Modes in FTP SQL Server: Active and Passive Modes in FTP C#: […]

IMAP “Not in the authenticated state” Error

March 17, 2010 in Uncategorized

The blog post explains the “Not in the authenticated state” error. ChilkatLog: SelectMailbox: DllDate: Feb 15 2010 UnlockPrefix: Anything for 30-day trial Username: NETWORK SERVICE Component: .NET 2.0 mailbox: Inbox Not in the authenticated state This error happens if the caller is either not connected to an IMAP server, or is connected but the Login […]

SSH / SFTP – Too much time between connect and authentication

February 5, 2010 in Uncategorized

The Solution: Issue solved.   The problem was, that we stepped through the code and because of that too much time elapsed between connect and authentication.  As we ran the program without breakpoints it worked. The Problem: The AuthenticatePw method failed and the LastErrorText contained this information: ChilkatLog: AuthenticatePw: DllDate: Jan 31 2010 UnlockPrefix: *** Username: […]

SSL/TLS Error – SEC_E_INTERNAL_ERROR

December 15, 2009 in Uncategorized

Problem: An SSL/TLS connection failed and the LastErrorText contains “SEC_E_INTERNAL_ERROR”, such as in the error text below: (See cause solution below) ChilkatLog: Connect: DllDate: Dec 4 2009 UnlockPrefix: **** Username: **** Component: .NET 2.0 objectId: 1 hostname: *.*.*.* port: 443 ssl: 1 maxWaitMs: 20000 windowsAccount: **** ClientCertDN: **** protocol: default An existing connection was forcibly […]

SFTP File not Found

December 8, 2009 in Uncategorized

Question: I’m trying to open a file on the SFTP server, but I get a “File not Found” error? Here is the LastErrorText: ChilkatLog: OpenFile: DllDate: Dec 2 2009 UnlockPrefix: Anything for 30-day trial Username: IUSR_ABC*** Component: ActiveX SshVersion: SSH-2.0-1.36 sshlib: GlobalScape SftpVersion: 3 hcCurDate: Tue, 08 Dec 2009 13:48:25 +0000 hcExpire: 1/2010 filename: test.txt […]

SFTP Permission Denied trying to open existing file.

December 8, 2009 in Uncategorized

Question: Why did I get a permission denied error from the server when trying to open an existing file on the SSH/SFTP server? Here’s the LastErrorText: ChilkatLog: DownloadFileByName: DllDate: Dec 2 2009 UnlockPrefix: *** Username: Administrator Component: ActiveX SshVersion: SSH-2.0-CoreFTP-0.1.2 SftpVersion: 3 PreserveDate: 0 fromFilePath: /test.dat.gz toFilePath: c:\abc\test.dat.gz OpenRemoteFile: filename: /test.dat.gz access: readOnly createDisposition: openExisting […]

InitializeSftp – Received FAILURE response to subsystem request.

November 9, 2009 in Uncategorized

If the SSH server is setup/configured to not allow SFTP, or your SSH user account is not allowed to use SFTP, the InitializeSftp method will return a failed status. Here is an example: ChilkatLog: InitializeSftp: DllDate: Oct 30 2009 UnlockPrefix: ABC123 Username: chilkat Component: .NET 2.0 SshVersion: SSH-2.0-OpenSSH_4.5 SftpVersion: 0 channelType: session clientChannel: 200 initialWindowSize: […]