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If it can be done via DLL, the chances of it being added to mIRC are zero to nil, at best. It is not Khaled's intent to make mIRC into the next operating system or programming language. Registry access is currently possible, and with utmost ease... the DLLs come already installed with windows, all you need is a <10 line script to access them. Only users with the intention of propagating the next trojan/worm would be so insistent on having the command built in natively.