When did mIRC start requiring registration?

mIRC.com
Quote:

mIRC is shareware, which means that you can download mIRC and try it out freely for 30 days to evaluate it. If during, or at the end of, the evaluation period you decide that you would like to continue using mIRC, you must register your copy.

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I am the self-appointed God of needlessly complex mIRCscript.