How can I map a drive/port for all new users on a machine without scripts etc?

Log into your PC with your domain account (for arguments sake, you are "DoeJ" in the "Domain" Domain.)

Map the "X:" drive to \ServerShare$; Select Reconnect at Login (obviously you should use valid drive letters/shares for your own environment)

Select Registry | Load Hive

Browse to the profile of the Default User (Typically: C:WinntProfilesDefault User), select the NTUSER.DAT file; Give this hive the name "DefaultU" 
*Note: you must use the same name you used in step 6 in part II for this to work...

Import the .REG file you exported in step 12 by double clicking it.

Browse to HKEY_USERSDefaultUNetworkX, highlight the X.

Select the UserName Value (it would now show a REG_SZ with "DomainDoeJ" as its data)

Delete it (The value, not just the data)

Edit | Add Value: Value Name: "UserName" Data Type: "REG_EXPAND_SZ" String: "%UserDomain%%UserName%" (Case Sensitive)

Highlight the HKEY_USERSDefaultU Parent Key and unload it (Select Registry | Unload Hive)

Temporarily rename the DoeJ profile.

Log out as the local administrator and log back in with the DomainDoeJ credentials. NT will not find your old profile (you renamed it in step 25), and so then copy the contents of Default user into a new DoeJ folder and use them.

Notice that you have an X drive, and did not have to use net use or map it with explorer.

Since you are now upset because you lost all your desktop and software settings, log out as your DoeJ account and then back in as the local admin. Rename the newly created DoeJ profile folder and Rename your original DoeJ profile back.