Master Key Plus 
 
 Introduction 
  
Master Key Plus assists in the design
    and development of a wide variety of master key systems. Many manufacturers systems are
    supported such as: Best A2-A4, Sargent I.C. and standard, Corbin/Russwin I.C. and
    standard, Schlage, and many other configurations. Systems may be designed as complex as
    eight (8) levels, with an almost unlimited possibility of user definable generation
    configurations including stepping factors, maximum adjacent cut specifications,
    manufacturer pin lengths, vary/hold information, detailed number sequencing and more.
    Master key systems currently in use may be easily entered, displayed, and printed. The
    system has been designed to allow easy on screen help to assist with system generation,
    and with minimal knowledge a master key system may be generated in seconds. Master Key
    Plus is a DOS based program. 
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