Vista - Host accessing VPN connection from within VPC?

Hey All,

My companies VPN only supports WinXP/Vista at the moment. It does an OS
Check and fails in Windows 7.

I was hoping I could do a trick like this:
- Using Windows 7, install Virtual PC and create a WinXP VPC which I will
then use to VPN into my company network (this i know i can do)
- *somehow* "bridge" or "expose" that connection/network back into the
Windows 7 host, so my Windows 7 apps can access those IPs.

It's not practical for me to work within a VPC - I really just wanted to use
it to somehow "hijack" the IPs/network from the VPC and use on my host.

If this isn't possible using virtual PC... is there another way I can
accomplish this?

Thanks