As you start to enter into Microsoft's Hyper-V world, you will quickly notice that the networking implementation of Hyper-V is very different than it was with Microsoft Virtual Server.

To help, Ben Armstrong has created a couple of posts that talk about the networking on Hyper-V.  One of which is designed to help you with a wireless network adapter.

Check out these two posts:

Understanding Networking with Hyper-V and Using Hyper-V with a Wireless Network Adapter

As usual, thanks to Ben Armstrong - the Virtual PC Guy.