In January 2012, we released an ActiveX Package for our spell checking component TX Spell .NET. This ActiveX Package contains a Visual Studio project that encapsulates TX Spell .NET for Windows Forms in a COM visible user control in order to expose Visual Basic 6.0 compatible members.
TX Spell .NET ActiveX Package enables you to add high-performance spell checking capabilities to your VB6 applications. Technically, it is based on TX Spell .NET for Windows Forms that gives you access to the power of .NET technology in your Win32 based application.
We published this project as open source on CodePlex including full sources and documentation:
TX Spell .NET ActiveX Package
CodePlex

We learned that you are modifying the wrapper to fit your requirements. Feel free to make changes and to contribute to this project. We would like to encourage the community to discuss and suggest changes or to upload new versions.
Happy coding!