Outlook, how to add an address in a distribution list

It seems that I have to answer my own question...

To add a contact in a DistributionList you can use an AddMember function. The only disadvantage is that the contact added must be in your contactlist already. So the following code creates first the contact and then add the contact to the DistributionList. I don't need the contact after, so at the end I just delete the contact. (It seems the addmember makes a COPY of the contact in the DistributionList)

Greetings,

Delphi-Lover.

uses  ComObj;

procedure AddAddressInDistributionList;
Var myOlApp,
    myNameSpace,
    myContact,
    myDistList,
    myMailItem,
    myRecipients : OleVariant;
begin
   myOlApp:=CreateOleObject('outlook.application');
   myNameSpace:=myOlApp.GetNameSpace('MAPI');

   //Create the new Contact
   myContact:=myOlApp.CreateItem(olContactItem);
   myContact.FullName:='New Name';
   myContact.Email1Address:='username@domain.com';
   myContact.Save;
   {
   .FirstName:='Delphi';
   .LastName:='Lover';
   .MobileTelephoneNumber:='123456');
   .HomeAddressStreet:='Delphi Lane 9';
   .HomeAddressCity:='Amsterdam';
   .HomeAddressState:='NL';
   .HomeAddressPostalCode:='1968';
   .Categories:='Business,Personal';
   //More field availble!!
   myContact.Display;
   }

   //Create the Distribution List item
   //olDistributionListItem = 7;
   //this constant is not in my Outlook API...
   myDistList:=myOlApp.CreateItem(7);
   myDistList.DLName:='Test Distribution List';

   //The MailItem is required to
   //create the Recipients collection
   myMailItem:=myOlApp.CreateItem(olMailItem);
   myRecipients:=myMailItem.Recipients;

   //A Contact with the following e-mail address
   //must exist for the AddMembers method to work
   myRecipients.Add('username@domain.com');
   myRecipients.ResolveAll;
   myDistList.AddMembers(myRecipients);
   myDistList.Save;
   //myDistList.Display;

   myContact.Delete;
end;