Microsoft Virtual Server 2005 provides the improved performance and functions than Virtual PC. However, for some reasons, it is not easy to share files between HOST and VM in Virtual Server. Generally, we have to setup a VPN access between HOST and VM, but sometimes it's not the best solution.
After some research, I found a easy to share files:
On your HOST, go to "run" "cmd", and type:
"net use X: \\192.168.1.11\C$"
And then login as administrator of VM.
In this case, my HOST IP address is: 192.168.1.2, the VM IP address is: 192.168.1.11, both of them share the same network adaptor and in the same LAN.
After the command, you will found a new "drive X" in your HOST computer.
The drive X is the mapping of the drive C of the VM . Now you may fully control the VM, and share files with it.
for more information about Microsoft Virtual Server, please visit: http://www.microsoft.com/windowsserversystem/virtualserver/default.mspx