Re: Help me to recover 33.54 BTC from a corrupt wallet.dat, I'll pay you a Reward!
I have that same type of file (a little different/but same just older) and have been reading about going through the source code to retrieve the "redeem script" or the "derivation method" but first I wanted to ask .. what is that src/wallet/walletdb.cpp specifically? as I don't see any strings but I do see key all over..
It sounds like you have become very confused... I'm not sure what you hope to find by looking in the Bitcoin Core source... A wallet.dat is simply a "BerkeleyDB" database format file. You are NOT going to find any "redeem script" or "derivation method" for a wallet file that is as old as you claim by looking at C++ source code for Bitcoin Core. 
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my python said "cannot import name 'generator_secp256k1' from 'pycoin.ecdsa" when trying to install bitwalletrecover.
This means that you have not installed the appropriate Python library... specifically, this one: https://github.com/richardkiss/pycoinIn any case, I would suggest that you take a few steps backwards as you seem to be heading down the wrong path. Have you attempted to dump the contents of your wallet.dat using something like PyWallet (https://bitcointalk.org/index.php?topic=34028.0)?
One last tip... make a couple of copies of your wallet.dat and work on the copies, don't try and run scripts etc on the original version of your wallet.dat file.
very confused indeed, either way.. what does the berkleydb wallet look like as I have that file..
I hope.. long story short
even though I saved also the c++ code files,
I saved the berkleydb file as well which should be the wallet.dat, thankyou for your reply and yes... unfortunately I am mentally disabled to the max! so maybe i didnt save the wallet.dat but I believe I did.. I also did something (stupid) thinking i was being clever (which I was not) incase a hacker got ahold of my files and would open it and see nothing useful (I had no clue what a hack even consisted of) so I saved a bunch of files from the bitcoin core directory knowing the file I needed to save was in %APPDATA%\bitcoin ...I copy/pasted the files all together on a notepad.. which being I knew the only file I needed was the wallet.dat from %APPDATA%\bitcoin I feel like I must have it, clearly how i saved it, it would come up corrupt.. not knowing that then, anyway unless I stupidly forgot to include the only file i was trying to save(which I just dont think happened but guessing its possible) so I'm trying to say that the redeem script or dirivitation method or masterprivatekey should be there, some place and i possibly just need to follow script .. do math or try things idk, something's gotta give!! maybe? possibly? hopefully? or i could just be s.o.l i dont know