lanser, you've identified the correct object. It really comes down to
how you want to use it? If you want it in a function:
Function AppInfo(AppInfoType As Integer)
If AppInfoType = 1 Then
AppInfo = Application.UserName
Else
AppInfo = "Enter Info Type"
End If
End Function
In a worksheet if you type ---> "=AppInfo(1)"
the result will be the user name
If you want it to be programmatic, then just stick that just assign
application.username to a variable and do what you will with that
variable. I might have misunderstood. Hope that helps.