"IDEXX InterLink technology automatically communicates information back and forth between AVImark
veterinary software and the IDEXX VetLab Station," said Donnie Meyer, senior director of business
development for McAllister Software Systems. "This is the kind of productivity and patient care that
results from our focus on the success of our customers and the long-standing relationship between
McAllister Software Systems and IDEXX."

"The IDEXX InterLink connection between AVImark and the IDEXX VetLab Station enables advanced
practice integration and significant customer benefits," added Kevin Roughton, VetLab marketing
manager. "Staff can order in-clinic laboratory diagnostics from anywhere in the practice, secure in
the knowledge that when the patient invoice is posted, all test charges have been automatically
captured. Most important, complete test results are immediately accessible from any AVImark
workstation in the practice for faster, more-informed diagnoses."

To take advantage of enhanced connectivity with the IDEXX VetLab Station, veterinarians must have
AVImark version 2010 as well as IDEXX VetLab Station software version 3.02 or greater. The latest
AVImark software release is available via automatic update download on www.avimark.net or by
calling 877-838-9273, option 1. Veterinary practices interested in more information about AVImark
can download a free demonstration at www.avimark.net/gtka/download-a-free-demo.

About IDEXX VetLab® In-house Analyzers
IDEXX VetLab veterinary analyzers provide fast and flexible real-time results on patients' blood and
urine during the pet's visit, allowing face-to-face discussions between veterinarians and clients that
can increase understanding and compliance. The analyzers' diagnostic capabilities include clinical
chemistry, electrolytes, hematology with five-part differential and reticulocytes, endocrinology, blood
gases, coagulation, urinalysis and infectious diseases. The IDEXX VetLab® Station serves as the
in-house laboratory's information management system, integrating results from all the analyzers-
including the Catalyst Dx® Chemistry Analyzer and SNAPshot Dx® Analyzer-and SNAP® point-
of-care tests into a single comprehensive and easy-to-use patient report. The report is an excellent
client-communication tool and tangible evidence of the value veterinary professionals provide to
their patients. The information is stored in the IDEXX VetLab Station's database for easy future
reference and historical results-trending capability. IDEXX SmartService® Solutions utilizes the
Internet to deliver proactive service and support for many IDEXX VetLab instruments.

About IDEXX Laboratories
IDEXX Laboratories, Inc. is a leader in pet healthcare innovation, serving practicing veterinarians
around the world with a broad range of diagnostic and information technology-based products and
services. IDEXX products enhance the ability of veterinarians to provide advanced medical care, to
improve staff efficiency and to build more economically successful practices. IDEXX is also a
worldwide leader in providing diagnostic tests and information for the production animal industry and
tests for the quality and safety of water and milk. Headquartered in Maine, IDEXX Laboratories employs
more than 4,800 people and offers products to customers in over 100 countries.

About McAllister Software Systems
McAllister Software Systems, Inc., creators of AVImark, has been delivering industry-leading veterinary
software since 1988. Today, AVImark has become the most popular, best-selling practice management
software in the veterinary industry. Through award-winning training and technical support, McAllister helps
practices reach their greatest potential by using AVImark to its fullest capacity. The company also offers
other innovative products and services, such as MSS Data Vault, McAllister Payment Solutions, MSS IT
Solutions, MSS Pet I.D. Cards, MSS Reminder Services, and Veterinary Wholesale Supply. Headquartered
in Piedmont, MO, the company employs more than 140 people and offers products and services to more
than 9,800 veterinary clinics in the United States, Canada and South Africa. For more information, visit
www.avimark.net.
# # #

Media contacts:

Dan Holland
Executive Director of Business Strategy
McAllister Software Systems
877-838-9273 x368
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Cathy Levendoski
Constant Communications
314-725-2594
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Kevin Roughton
IDEXX Laboratories, Inc.
207-556-3713
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