Hi, I’m software and database developer with more than 35 years experience. In the past 20 years I have worked (full-time, in-situ) for two international organizations; IATTC in San Diego, CA, USA, and the Food and Agriculture Organization (FAO) of the United Nations, in Victoria, Seychelles. I'm currently retired, doing some freelancing to stay busy and up-to-date.
What you require can be accomplished by creating a COM object in VB6, and then creating an interface to it from the .NET application (either VB or C#). The interface can be created on-the-fly, by requesting the information from the type library of the VB6 object, or you can ask Visual Studio to create the interface for you. I certainly can help with this project, and have extensive experience doing this kind of work.
If you think you may be interested in my services, please send me a PM. I could then provide you with a copy of my CV (for you to check experience/references) and we can further discuss your requirements.
best regards,
Marco Garcia