I was going to suggest TrialPay... but I just noticed a trialpay ad! Nice one Khaled.
Now many more people will be able to afford mIRC (FREE!).
I first used trialpay to get WinZip... But I had to register (and make) a bid on ebay.
It was simple, Register, Bid on an item for $0.99 thats worth heaps and delete account.
eBay was willing to thank me for trying their website by paying for a WinZip licence.
As noted above, TrialPay is 100% free to us!!! and it works!
Edit: Should add some more info for other!
The link to a free copy of mIRC is: http://www.mirc.com/regtrialpay.html
Note: Not happy with the offers? Check back later as they change often!