Installation

Guys pls. help me out.. Im new to this Oracle and i wanted to install it on my computer.. I started installing Oracle 11gR2 and I'm getting an error.. File not found D:\app\Simoun\product\11.2.0\dbhome_1\owb\external \oc4j_applications\applications\WFMLRSVCApp.ear.. Im not sure if your aware of this error but I wanted to confirm if 11gr2 is just a patch of 11g. I haven't installed 11g on my computer. Hope you could provide information concerning this matter..

Thanks guys:confused: