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I am just beginning to learn about IoC and Dependency Injection. I am planning on doing a MonoTouch project and wanted to use TinyIoC but I wanted to test it out first. I'm creating a dummy credit card processing console app and I'm having trouble with how to configure TinyIoC since I have multiple implementations of my interface. This is my test app. Interface : public interface IPaymentProcessor { void ProcessPayment(string cardNumber); } Two Implementations of the interface: VisaPaymentProcessor public class VisaPaymentProcessor : IPaymentProcessor { public void ProcessPayment(string cardNumber) { if (cardNumber.Length != 13 && cardNumber.Length != 16) { new ArgumentException("Card Number isn't the correct length"); } // some code for processing payment } } AmexPaymentProcessor public class AmexPaymentProcessor : IPaymentProcessor { public void ProcessPayment(string cardNumber) { if (cardNumber.Length != 15) { new ArgumentException("Card Number isn't the correct length"); } // some code for processing the payment } } Simple stuff. Now I have a class that accepts the interface as a parameter in the constructor.... CreditCardProcessor public class CreditCardProcessor { public IPaymentProcessor PaymentProcessor { get; set; } public CreditCardProcessor(IPaymentProcessor processor) { this.PaymentProcessor = processor; } public void ProcessPayment(string creditCardNumber) { this.PaymentProcessor.ProcessPayment(creditCardNumber); } } My console app looks like this.... class Program { static void Main(string[] args) { TinyIoCContainer.Current

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