Controlling Servos via Firmata under VB.net

Hi there!

I've got a question about the Firmata protocol under Visual Basic. Net. In the example of .Net is very easy to see how it responds with a pin digital or with PWM or how to define a pin as input or output. But I could not find any function to define a pin as servo pin. The same is true for I²C bus. VB.Net examples are perhaps outdated?

Jens