Need a Manual way to replace the Sylink.xml on a Windows 2003 32 Server

Ever since we went from v.11 to v.12, I have NO idea where the Sylink files that I need to replace is in order to make a client go from unmanaged to managed, I know of the sylink drop utilities, but I want to know the location of the Sylink.xml file,  so I can replace it manually. WIndows 2003 Server 32 Bit systen.

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