Replace Sylink SEP 12 RU2

Replacing sylink.xml on SEP 11 MP7 was so much easier and straight forward because you simply stop the smc.exe service, replace the sylink.xml file in a directory, and then restart smc.exe.

Replacing sylink on SEP 12 RU2 is very complicated. I cannot find the directory where sylink.xml belongs. And when I attempt to "Import" the communications settings on the SEP 12 RU2 Client, nothing happens.

HELP!!!