x64 Chilkat .NET Assembly for the .NET 4.6.* Frameworks

Download the 64-bit Chilkat .NET assembly for the 4.6.* Frameworks.

v11.4.0 30-Mar-2026sha256: 152fa9dee6b51de27596e4f9a7163da3bb2df49745ad8c3838c7a98f4f68fb2d
64-bit Chilkat .NET for the 4.6.* Frameworks (VS2017)

v11.4.0 30-Mar-2026sha256: 1698cb9d18625a451a1b7609ad5ef6d046df60e1e41aa97f30a53b05211565cc
64-bit Chilkat .NET for the 4.6.* Frameworks (VS 2015)

* Contains all Chilkat .NET classes.

Install Instructions

Download and unzip to any directory. There is no "install". To use the Chilkat .NET assembly in a Visual Studio project, add a reference to the ChilkatDotNet46.dll. (When adding the reference, Browse to the location of the ChilkatDotNet46.dll.)

Common Error #1

The Chilkat .NET assembly is a mixed-mode assembly. It provides a managed API, but the inner core contains native code. A process must load the correct assembly at runtime. A 32-bit process must load the 32-bit ChilkatDotNet46.dll, and a 64-bit process must load the 64-bit ChilkatDotNet46.dll. When a process tries to load the incorrect format, the following error will occur:

Could not load file or assembly 'ChilkatDotNet46' or one of its dependencies. 
An attempt was made to load a program with an incorrect format.

See Incorrect Format for more information.

Common Error #2

The Chilkat .NET 4.6 assembly requires the VC++ 2015 runtime to be installed on any computer where the application runs. Your development computer will have it because Visual Studio has been installed. However, if deploying to a computer where the required VC++ runtime is not available, the following error will occur:

Could not load file or assembly 'ChilkatDotNet46.dll' or one of its dependencies. 
The specified module could not be found.

See Could not load assembly ChilkatDotNet*.dll or one of its dependencies for more information.

Also see Could not load assembly ChilkatDotNet46.dll or one of its dependencies for more information.

Reference Documentation

Online Reference Documentation is located at Chilkat Documentation.

Sample Code

Online examples are located at Chilkat Example Code