Get assembly version from .net class library COM visible doesn't work

Question

I made a class library, COM visible, in CSharp with Visual Studio 2010. When I try to call this method:

    public string Version {
        get { return Assembly.GetEntryAssembly().GetName().Version.ToString(); }
    }

from VB6 client I obtain Object reference not set to an instance of an object. Other methods works properly. From .NET client all works fine!

What's wrong? Thanks, Luigi.

Answer 1

Assembly.GetEntryAssembly() returns the assmebly that launched this .Net process (with Main())

In an unmanaged process, it will return null.

To get the assembly containing your code, use typeof(MyType).Assembly.