MDI Security Systems to Present Live Webcast for Corporate Shareholders at ASIS

ASIS 2004 Security Conference Booth 5943 SAN ANTONIO -- MDI Security Systems, the cornerstone of American Building Control and the global security solution of choice for over 25 years, announced that J. Collier Sparks, Chief Executive Officer of American Building Control and President of MDI Security Systems, will host a live webcast from the 50th annual ASIS International conference in Dallas on Sept. 29, 2004, at 10:00 a.m. CST.

This webcast will serve as a platform for key executives and board members within the company to convey the business challenges, successes and milestones realized during 2004 while continuing the communication objectives set by Mr. Sparks in his state of the company address last month.