Reading from a password protected Zip stream without extracting it

I have recently added to my sources a data.h which only contains a stream (const char*) of a Password Protected Zip file (no compression). This stream was generated using libb64. My goal, which seems to be fairly achieved with this, is to give a level of protection to my resources -- at least from the average user or even programmer.

I would like to know what library should I use and HOW should I use it to be able to read this stream and access files from it, using only memory allocation (never creating new files).

What are my options? Multi-platform solutions will be very welcome but I have no problems with Windows MSVC, because I'm planning to release this only for Windows anyway.