Doh! Sorry, should have read your post more carefully.
Assuming you want each user to have their own user name and password:
Create a two field table containing UserName and Password fields.
Create a form with a combobox for the user name and a textbox for the password.
Create a button with the following code behind it:
Private Sub cmdCheckPassword_Click()
If Me.txtPassword.Value = DLookup("Password", "tblUsers", "UserName=" & """" & Me.cboUserName.Value & """") Then
'Password correct, open system's main form
Else
'Password incorrect, deny access.
End If
End Sub
Ed Metcalfe.
Please do not feed the trolls.....