Group Logic (http://www.grouplogic.com) has released ExtremeZ-IP 7.3, an update of the Mac OS X software that helps enterprise customers integrate Macs into existing Window infrastructures.

ExtremeZ-IP 7.3 upgrades focus on performance optimizations and reliability and compatibility improvements, with continued full support for Mac OS X 10.7 (“Lion”) .A new license for ExtremeZ-IP 7.2 is US$395 for a three-client server and $1,495 for a 10-client server. Upgrade pricing and an enterprise licensing program is also available. Version 7.3 is a free upgrade for existing customers.