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Lawful copies of computer programs. 
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81.—(1) It is not an infringement of the copyright in a computer program for a lawful user— 
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(a) to make a permanent or temporary copy of the whole or a part of the computer program by any means or in any form, or 
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(b) to make a translation, adaptation, arrangement or any other alteration of the computer program and to copy the results thereof, 
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to achieve the interoperability of an independently created computer program with other programs where the following conditions are complied with: 
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(i) those acts are performed by the lawful user or on his or her behalf by a person authorised to do so; 
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(ii) the information necessary to achieve interoperability has not previously been available to the person referred to in subparagraph (i); and 
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(iii) those acts are confined to the parts of the original program which are necessary to achieve interoperability. 
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(2) Subsection (1) shall not permit the information obtained through its application— 
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(a) to be used other than to achieve the interoperability of the independently created computer program, 
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(b) to be given to persons other than those referred to in that subsection, except where necessary for the interoperability of the independently created computer program, or 
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(c) to be used for the development, production or marketing of a computer program substantially similar in its expression, or for any other act which infringes copyright. 
 
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