We are looking for a company to create an instant messenger for our company. It will be used as real time notification and real time communication for two kinds of clients who will see different interface and features. There will be shortcut on the side and contact list on the other side (pretty much like MSN), however, the email importation and the script must be included so that the installation of such Instant messenger can be spread to the clients contact list on either their Hotmail contacts or Outlook contacts. The installation program must be provided as well. There is no need to be as complete or complicated as MSN messenger, but the basic functions must be there.
Please Provide Similar Examples/Referneces