The second important question that we need to clarify is that: Documentation specifies that we need to add the 32-bit version of the client DLLs for the SAP adapter to C:\Windows\SysWow64 folder and the 64-bit version of the DLLs must be added to C:\Windows\System32 folder, but what this means? Do need to add the same DLL in two different folders? So, it can run under 32 or 64-bit Host Instances. So, one of the key questions that we need to clarify is: Does the WCF-SAP adapter runs under 64-bit Host Instance?Īnd the correct response to this question is: Yes, it does! The SAP adapter supports both the 32-bit and the 64-bit versions of the SAP RFC SDK. I hope with this step-by-step installation guide to clarify a bit and document a little better this task. There is a lot of inconsistent and incorrect information about the BizTalk SAP Adapter (or in this case WCF-SAP Adapter) installation process and how it works – It is normal to see comments that the adapter only runs on 32-bit, or to see indications that we have to copy DLLs to two different places (System32 and SysWOW64) but which ones?
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