OPT (no replies)

In reading the documentation the manual calls for using the directory

C:\Program Files (x86)\MySQL\MySQL Server 5.5\lib\opt\

In my installation of MySQL Server 5.5 there is not directory as listed above. I only have

C:\Program Files (x86)\MySQL\MySQL Server 5.5\lib

&&

C:\Program Files (x86)\MySQL\MySQL Server 5.5\lib\debug

&&

C:\Program Files (x86)\MySQL\MySQL Server 5.5\plugin

Where is OPT? Is there some better documentation around because I am using MySQL server 5.5 and my installation looks nothing like the installation described in the documentation.