You can add another NetBIOS name in the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters section of the Windows registry by adding the OptionalNames string value. If three or more NetBIOS names are required, use the multi-string value with the same name.
This NetBIOS name is not treated the same as the server's "primary" name. To aid in name resolution, I recommend that you add a DNS CNAME record that points to the server's primary name. Note: Editing the registry is risky, so be sure you have a verified backup before making any changes.