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SECURE SYSTEM FOR ACTIVATING PERSONAL COMPUTER SOFTWARE AT 
REMOTE LOCATIONS 


•• :}? s r. . i. "-rip. : 


Patent number: V 

Publication date: 

Inventor: < 
App f lic|nt: : r-; ,- - 
Classification: 
- international: 


□P650T120T 
1994>01-i7 


- european: 


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Application number: JP19910501845T 19911106 
Priority; number(s): 


US19900610037 19901 ; 107;US199iQ682456 19910409;^ 


Abstract not available for JP6501 120T 

Abstract of corresponding document: US5222134 

A process and system for activating various 
programs are provided in a personal computer. 
The computer is initially provided with a 
registration shell. A data link is established 
between the personal computer and a 
registration computer. By providing the 
registration computer with various information, a 
potential licensee can register to utilize the 
program. Once the registration process is 
complete, a tamperproof overlay program is 
constructed at the registration computer and 
transferred to the personal computer. The 
tamperproof overlay includes critical portions of 
the main program, without which the main 
program would not operate and also contains 
licensee identification and license control data. 


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