A .NET developer's guide to Windows security
Have you ever noticed that the first time a particular user logs on to a machine it takes a little while longer for the shell (typically explorer.exe) to start up? You can hear the disk drive whirring and clunking—obviously something is going on. Subsequent logons are much faster. What's happening is this: A profile is being created on the machine for the user.
By Keith Brown at InformIT.
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