In your project, locate chilkatdotnet45.dll under References. In the Properties window (F4), set:

This ensures the DLL is copied to your \bin\Debug\ or \bin\Release\ folder when you build.

A common question arises: Why pay for or rely on a third-party DLL when the .NET Framework provides built-in support for HTTP, FTP, and encryption?

The answer lies in complexity management and robustness.

Before System.Xml.Linq (LINQ to XML) became popular, Chilkat’s Xml class was a favorite for parsing and manipulating XML documents. It remains popular because it uses a cursor-based navigation model rather than the heavy Document Object Model (DOM), allowing for efficient parsing of massive XML files without loading the entire file into memory.

Unlike old COM DLLs, chilkatdotnet45.dll does not need to be registered with Windows Registry. It is a .NET assembly that is loaded via reflection. Never run regsvr32 on it.

You have two options: