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Why don't you write some simple programs with files on this hardware configuration and find out? Why have all the data packages in one file? Why not a file per data package with the name as the time...

For a book covering the windows areas you will need have a look at
Windows via c/c++ by Jeffrey Richter...

Have a look at the link to the codeproject site I gave in my previous reply. It provides the code for a generic c++ class for using memory mapped files which might your task easier.

Using the windows memory mapped files api requires some familiarity with both c/c++ and with the windows api. Programming your requirements in c/c++ when you are not very familiar with the language...