Error when installing Oracle 11.2.0.3 in Windows Server 2008 R2 64 bits
Did you uncompressed each zip file into its own folder in C:\Software\Oracle 11.2.0.3 64 bits\oracle\ or into the same folder there?  Almost every reference I can find indicates that this problem is caused by the files not being extracted into the same folder.

http://shethedba.wordpress.com/2009/02/02/11g-installation-error-message-file-not-found-wfmlrsvcappear/
http://www.oraerp.com/Thread-WFMLRSVCApp-ear-file-missing-11g-Installation
https://forums.oracle.com/forums/thread.jspa?threadID=937887
https://stackoverflow.com/questions/11547101/wfmlrsvcapp-ear-file-not-found
http://lucatarrini.net/?p=230

If you have access to My Oracle Support, there is an article covering this topic - 468771.1.