[Blind-sysadmins] vmware server and accessing shares on a host

Hello, I've got vmware server running on an xp professional machine. One of my vm's is also running xp professional, it's in bridged networking mode.

From the vm when i atempt to access the network fileserver as in \\servername i am immediately prompted for authentication credentials and all is good. I've got a share on the host system as \\hostsystem\share for illustrative purposes and i atempt to access it via unc naming as i do with the network fileserver. Unlike the network fileserver access is not prompted for quickly, it takes almost a minute before i am asked for login information. Any additional information needed let me know, any suggestions appreciated. Thanks. Dave.