What do international laws say about using a software which is free only for non-commercial purposes but used otherwise?
<p>Concerning the question in title</p>

<blockquote>
  <p>What do international laws say about using a software which is free only for non-commercial purposes?</p>
</blockquote>

<p>I am talking about software which are free for students or in general for non-commercial use.
Of course I understand the meaning of such statement and I believe it's fair.</p>

<p>My question is basically: <strong>what does according to International laws happen when use certain tools for professional purposes even if you have a non-professional license?</strong></p>

<p>International law says very little about private contracts unless there are statutes in a country where a claim could be filed that would affect the operation of the contract.</p>

<p>Otherwise, the usual rules of construction apply, the <em>usual rules</em> being the rules that a court with jurisdiction to hear the matter would apply.</p>

<p>That is:</p>

<ul>
<li>Software X is available free online for non-commercial (a limited licence)</li>
<li>Someone uses the tools for commercial use (<em>professional</em> might be different to <em>commercial</em>, so I'll just keep this simple)</li>
<li>A person with the right to enforce the licence to software X becomes aware of this and brings a claim in country Y.</li>
<li>The court of country Y, if it has jurisdiction to hear the matter, constructs the meaning of the licence and considers any relevant legislation and makes a finding.</li>
</ul>

contract-law