Just a quick note to myself to remember the registry key
Setting this key will ensure that Windows does not try to log on until the network subsystem has been fully initialized. Domain users with a roaming profile revert back to a local profile because the log on is simply too fast. When no user is sitting in front of the PC to enter his user name and password Windows does not always have enough time to initialize the networking subsystem. During logon this can cause failure to map network drives or to load the roaming profile. The latter one can screw your roaming profile if you e.g. log the same user on different PCs on. When one user does a log off it will store the profile back in the domain potentially screwing up the newer settings which just recently have been configured for this user.