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I'm trying to implement authorize.net to accept payments on our site and need to get something up very quickly. After trying to get DPM working for a while I decided to try simple checkout. Although this is not really ideal, I was hoping it would be ...

Hi, I'm trying to implement the DPM in C#. I'm using an older version of .NET (2.0.50727) and am recieving an error generating the fingerprint hash (string vFingerprintHash = AuthorizeNet.Crypto.GenerateFingerprint(vTransactionKey, vAPILoginID, vAmou...