MONTREAL, Canada, April 27, 2004– AD OPT Technologies Inc. (“AD OPT”) (TSX: AOP) a leading developer and vendor of advanced workforce management solutions, today announced that Cargolux Airlines International S.A. (“Cargolux”), based in Luxembourg, has licensed Altitude Pairing to build cost-effective and efficient flight crew pairings.

“We are pleased to establish a relationship with Cargolux and extend our presence in the European market. Cargolux is Europe’s largest cargo carrier and represents AD OPT’s first contract in the cargo industry outside North America,” said Mark E. Burton, President and CEO of AD OPT. “Airlines continue to closely scrutinize capital expenditures and are allocating resources to initiatives that help them to realize cost savings and greater efficiencies in their operations. In this environment, our Altitude solutions suite remains in high demand, demonstrating the ability to deliver a tangible return on investment along with greater operational efficiency.”

Altitude Pairing is a dynamic and flexible system that optimizes crew pairings, while maintaining full compliance with company rules, contract agreements and government regulations.  Gilles Lapierre, AD OPT’s Divisional Vice President, Altitude explains.  “Altitude Pairing is the solution of choice as it allows for extensive “what-if” testing and helps planners to overcome the tremendous challenge of rapidly distilling vast quantities of rules, regulations and corporate data to deliver an effective crew pairing solution.  Cargolux joins an impressive list of international airlines that have selected Altitude Pairing to manage their flight crew pairings.”

“Through the benchmarking process, Altitude Pairing was able to exceed our desired ROI,” said Ingvi Halldorsson, Head of Crew Planning at Cargolux. “Furthermore, AD OPT’s attentive staff worked closely with us to develop the functionality best suited to our needs. In the cargo business, timetables and customer demands can shift abruptly, making scheduling of aircraft and crew a costly and labour intensive endeavour. The flexibility and functionality of Altitude Pairing makes it the ideal solution to meet our challenges and to improve our short-term and long-term planning capabilities.”

About Cargolux

Based in Luxembourg, Cargolux is Europe’s largest all-cargo airline, operating a modern fleet of 13[h2] B747-400 freighters on a worldwide network, covering 90 destinations, 50 of which are served on scheduled all-cargo flights. The company has more than 85 offices in over 50 countries and also offers an extensive trucking network to more than 50 destinations in Europe and the US as well as charter and aircraft maintenance services. Cargolux employs more than 1300 staff worldwide.

ABOUT Altitude

AD OPT’s Altitude is a suite of crew planning, scheduling and management solutions for the airline industry.  At a time when airlines are increasingly being challenged to improve operational efficiencies, the Altitude suite of products optimizes workforce deployment in a way that balances the interests of the airline and its crewmembers.

About AD OPT

AD OPT (TSX: AOP) is a leading provider of advanced workforce planning, scheduling and management solutions. AD OPT’s best-in-class applications enable organizations to quantify labour costs, enhance planning capabilities, and improve employee quality of life.  Headquartered in Montreal with offices in British Columbia, Canada and Queensland, Australia, the Company’s industry-specific solutions operate in more than 400 facilities worldwide. For more information, visit us at www.ad-opt.com.