This fix resolves a conflict between A-Shell 5.0 and 5.1 over the use of the FtpDLXcall.DLL. It was causing FTP transfers to break after installing certain sequences of 5.0 and 5.1 updates on top of each other. The 5.1 version of FtpDLXcall.DLL has been renamed to FtpDLXcall2.DLL, and 5.1 now automatically uses it in place of FtpDLXcall.DLL. You can remove FtpDLXcall.DLL from the 5.1 bin directory, although it does no harm.
Note that both versions continue to share the last registered copy of wodFTPDLX.dll though. Each distribution has its own copy and registers it, so the latest registered copy will move around, but this should not matter, unless you then delete the latest installation. In that case, manually re-register the DLL using:
REGSVR32 <path>\wodFTPDLX.dll
