Possible to make a dll with java?

I am completely new to Java. Is it possible to create a Windows style DLL with Java? I am working with one project written in VB.NET which needs to access functions in another project written in Java. Can anybody help me figure out how to do this?

I'm not sure what you mean by what type of project. It contains numerous data analysis functions which I want to access from a VB.NET program. From what you've written, I must assume that Java cannot be used to create a DLL and my only option is to rewrite it in another language. Thank you for the info.

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