uses
ComObj;

procedure MailItem;
const
olMailItem = 0;
var
Outlook: OLEVariant;
MailItem: Variant;
begin
try
Outlook := GetActiveOleObject('Outlook.Application');
except
Outlook := CreateOleObject('Outlook.Application');
end;
MailItem := Outlook.CreateItem(olMailItem);
MailItem.Recipients.Add();
MailItem.Subject := 'filen som du vill bifoga';
MailItem.Body := 'din text';
MailItem.Attachments.Add('C:\Windows\Win.ini');
MailItem.Send;
Outlook := Unassigned;
end;