NW 7.3 - Is there a way to get all logged in users?(Like session Management)

Hello All,

I know is there several threads about this subject but none was valid for me.

I need to know who are logged in like session management work.

I tried some solutions like this:

<%

IUserFactory uf = UMFactory.getUserFactory();

ISearchResult ids = uf.getUniqueIDs();

while (ids.hasNext()){

  String  uid = (String)ids.next();

  IUser sapUser = uf.getUser(uid);

  if(sapUser.getUserAccounts()[0] != null){ %>

   <br><%=sapUser.getDisplayName()%>   

   <%}

}

%>

But this solution retrieves all users of Portal and not only the logged in users.

Somebody already has success on it?

Thanks.