EasyWinLogon
Keeping different logon names and different passwords for inhouse applications can be a real headache not only to applications administrators but also to application users. Is there a way to use the existing Windows Security in different applications? Yes there is.

EasyWinLogon allows developers to take advantage of Windows NT userid and password to authenticate users painlessly with only one or two lines of code.

EasyWinLogon can be used with MSAccess, VB and C# applications, etc.

EasyWinLogon allows users to change their password only in one place and only remember one password to access different applications.