Okay, so I'm looking through the wallet.dat with a hex editor, and I've managed to find the Yacoin public address that contains my Yacoin in plaintext. Where exactly is the private key stored? And how would I decrypt it manually?

Edit: Trying to use pywallet now to salvage the private key. What value should I pass to the --otherversion= switch so it looks for Yacoin addresses rather than Bitcoin?

Edit2: Since addresses are base58 encoded and since Yacoin addresses start with an Y, that would be 31, correct? Let's see if this works

Edit3: Meh, not working. I've tried the following two commands:

C:\Users\Jaap\Desktop>pywallet.py --datadir="C:\Users\Jaap\AppData\Roaming\YaCoin" --otherversion=31 --dumpwallet

and

C:\Users\Jaap\Desktop>pywallet.py --datadir="C:\Users\Jaap\AppData\Roaming\YaCoin" --otherversion=31 --dumpwallet --passphrase=mypassphrase