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.  […]

Unzipping zips with Unicode Filenames

March 8, 2012 in Uncategorized

Question: I see your example code includes the ability to create a zip with Unicode filenames. Does your product support unzipping files with unicode filenames, such as Chinese? Answer: Yes, it can unzip files w/ Unicode names — assuming the .zip was correctly created.  Your first test should be to unzip without trying anything differently.  […]

(IOS/IPhone) Setting Zip.TempDir to the Documents Directory

February 23, 2012 in Uncategorized

The Chilkat Zip methods for writing a .zip will first write the zip to a temp file in the directory specified by the Zip.TempDir property, and then if successful, moved/renamed to the actual output file. The default value for zip.TempDir is “.” (the current working directory) and this is often a directory where it is […]

Verify / Test a Zip Archive

January 3, 2011 in Uncategorized

Question: I need an easy way to verify that a zip downloaded, i.e test it, preferably without actually unzipping it to a directory. I couldn’t find any method like that – the files are small enough in the zip I could probably unzip them into memory. Is that pretty much the only way to do […]

Delete Files from a Zip Archive

April 5, 2010 in Uncategorized

Question: “I’ve been trying out the ZIP package that you guys have and for the most part it’s great. I do however have a question about folder manipulation. What I would like to be able to do is individually remove files from the zip and if the directory is empty I would like to remove […]

How to Add Comment to a Zip Entry?

February 18, 2010 in Uncategorized

Question: How do I go about adding text to the entry.comment field while zipping individual files? Answer: After appending files via the AppendFiles (or other append methods), you’ll have a zip object with N entries, each of which is a reference to a file that will be zipped when WriteZip is called (or WriteZipAndClose, or […]

Zip DecryptPassword and EncryptPassword

December 8, 2009 in Uncategorized

Question: I’m confused about DecryptPassword and EncryptPassword. I want to encrypt the files I am emailing. I want the recipient to be required to enter a password when they try to open the zipped file. Do I EncryptPassword or DecryptPassword? Answer: Use DecryptPassword when using the Chilkat Zip component / library to open an encrypted […]

VB.NET to Extract a File from one Zip Archive and Append it to Another Zip Archive

September 22, 2009 in Uncategorized

The following VB.NET code copies the contents of the nutrition.xml file (found in xml1.zip) to another pre-existing .zip named xml2.zip: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim zip1 As New Chilkat.Zip Dim success As Boolean success = zip1.UnlockComponent(“Anything for 30-day trial”) success = zip1.OpenZip(“xml1.zip”) Dim entry As Chilkat.ZipEntry entry […]

Zip Compress JPG?

April 15, 2009 in Uncategorized

Question: May I know that which Zip method in your component could give the best compression? We are trying to Zip some JPEG, and perhaps could reduce the size by half or more. Answer: The JPG file format is already a compressed format, so usually very little is gained in trying to compress it — […]