NEW DELHI: Hutchison Essar has tied up with Microsoft for a broad scale mobile services alliance that will provide mobile search and other key Windows Live services to the former's mobile subscribers. Hutch Managing Director, Asim Ghosh, said the price structure for the services would be disclosed at a later date. Microsoft's Chief Executive Officer Steve Ballmer was present on the occasion. Mr. Ballmer expected the facility would stimulate e-commerce and advertising markets in the near term.