If you are running SERVER on a 64-bit OS, the default SAP install presents the following error:
Cannot access librfc32.dll.
Please put a 64-bit version of librfc32.dll in your System32 folder (typically C:\Windows\System32) and a 32-bit version of librfc32.dll in your SysWow64 folder (typically C:\Windows\SysWow64).
You can get both versions from SAP Service Marketplace.
Currently, SAP does not have a separate SAP GUI for 64-bit operating systems. However, because of the limitations mentioned in SAP note 1442028, SAP is considering creating one.
Winshuttle is legally prohibited from supplying the file in question, librfc32.dll. Winshuttle developed a workaround that should be performed before you install Winshuttle SERVER.
Note - Check SAP Note 413708 – The following instructions are current at time of document creation.
The RFC library is available from the SAP Software Distribution Center
Check SAP Note 413708 - RFC library that is current at this time:
The current RFC library is available from the SAP Software Distribution Center under:
http://service.sap.com/swdc