One of my students, Julius, emailed to remind me that there is a Windows API call you can use to pull up the logon name of the person currently logged in to WINDOWS using this function:

Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long

This would allow you to use it as an extra level of security to make sure that the person accessing the database is at least the person logged on to Windows... or just even use it to set the default value for your database logon form's username field.

I don't have a whole lot of time right now to give you a full explanation of its use, but if anyone is interested, post here and perhaps I'll add this as a lesson (or at least more description of how it works).