Hi Pramod,
Looks like a bug to me, if nothing else works, stick to the original entry:
dir = ./demoCA
and create a "demoCA" directory in the folder "C:\Program Files (x86)\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\win64_x64"
keeping the rest of the configuration relative to $dir.
As the \ is missing, you could try dir = C:\\SSL and try to escape \ out.
Denis