[nosferatus]

Sorry for bumping this old thread, but maybe others need it.
You need to look into reflection class.
It will help you allot.

Dll MsgBoxExample:
Step1:

Open your vb net client 2008,2010,2012 .. (any of them), click New Project and choose Class Library.

Spoiler:

After the project is opened, right under Class1 make a shared sub called anyway you liked.

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Save and build the project.

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Step2:

Make a form project or in my case i like the empty project.

Spoiler:

Add you previously builded class to the new project resources.

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After you do that add a class and right under Class1 add this code.

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If you did everything right, the result shold be this...

Spoiler:

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Of course this is the beginner way.
There are many many other ways to load and use a dll and his parameters.
Good luck and have fun.