Ok the poker and
http://b casalemedic.com netflex have nothing to do wtih mIRC. This is adware on your computer.
The "mIRC spam" is because it is a trial version. After which it costs only $20 for a lifetime use.
Edit: mirc6.17 is not called NexGen, nor is affiliated with them in any way, as far as I know at least. :P
