Here is an update on my adventure of installing the Feb 2006 CTP Vista build.   I’m using a Dell Server with Virtual Server 2005 R2 installed.  The host OS is Windows 2003 Enterprise RTM version.  The built-in NIC wasn’t working and I added my own NIC (3Com 3C905TX-based Ethernet Adapter (Generic)).  One of the issues I was having my Vista build wasn’t seeing the network.  When viewing the Virtual Server 2005 configuration, this error was displayed

Unexpected error (0x80004005). The virtual network’s configuration information could not be retrieved. Microsoft Virtual Server could not complete the operation due to an unexpected error (0x80004005).  A little Google magic and I found this thread.  Click Here to view

There was a NIC available inside my Vista instance however it wouldn’t ping the default gateway.  I found an issue where someone else had an issue with Virtual 2005 R2 and “3Com 3C905TX-based Ethernet Adapter (Generic)”   I didn’t reboot the host OS after install Virtual Server 2005 R2.  In summary is what I did to get this working. 

• -Uninstalled Virtual 2005 R2
• -Reboot host machine
• -Reinstall Virtual Server 2005 R2
• -Reboot host machine
• -NIC was seen by VS 2005 R2 and Vista was able to ping the default gateway

After the install finished, I installed Virtual Server additions, the OS was very responsive.  My Vista adventure continues.

Steve