I am trying to prototype a DLL to decrypt the response coming from ICVERIFY credit card procesing software. Unfortunately all I have to work with is a sample c++ program that makes a call to the DLL.

What I did for the prototype record DLL_ENCRYPTIONMANAGER

ENCRYPTIONMANAGER

LPCHAR STDCALL DecryptThirdPartyMessage(LPCHAR,LPCHAR)

When I run my program I am getting a message that says DecryptThirdPartyMessage does not exist in EncryptionManager.dll

Here is the call from the c++ program:

strDecString=objEncryptionManager.DecryptThirdPartyMessage(csReqPreparationPath, strEncString);

Any ideas on whats wrong or how to proceed?

Dave,

FWIW, I wrote a custom interface to this very software using XML over TCP/IP. Works like a charm and I didn't have to prototype a dll.

John

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