If you like IZArc and if you want to support it, it is possible to donate a small amount of money. 
  
Online Donation using a secure server: 
  
You can donate 25$ base amount (or 25 Euro, if you're living in Europe), but if you would like to donate a bigger amount, just change the quantity to the value you want to. 
Most credit cards are accepted.         
  
Remember: IZArc is freeware for everybody. You don't have to pay for it, but I would be glad about a small donation.